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1.
J Med Virol ; 96(4): e29611, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38639305

RESUMEN

While micronutrients are crucial for immune function, their impact on humoral responses to inactivated COVID-19 vaccination remains unclear. We investigated the associations between seven key micronutrients and antibody responses in 44 healthy adults with two doses of an inactivated COVID-19 vaccine. Blood samples were collected pre-vaccination and 28 days post-booster. We measured circulating minerals (iron, zinc, copper, and selenium) and vitamins (A, D, and E) concentrations alongside antibody responses and assessed their associations using linear regression analyses. Our analysis revealed inverse associations between blood iron and zinc concentrations and anti-SARS-CoV-2 IgM antibody binding affinity (AUC for iron: ß = -258.21, p < 0.0001; zinc: ß = -17.25, p = 0.0004). Notably, antibody quality presented complex relationships. Blood selenium was positively associated (ß = 18.61, p = 0.0030), while copper/selenium ratio was inversely associated (ß = -1.36, p = 0.0055) with the neutralizing ability against SARS-CoV-2 virus at a 1:10 plasma dilution. There was no significant association between circulating micronutrient concentrations and anti-SARS-CoV-2 IgG binding affinity. These findings suggest that circulating iron, zinc, and selenium concentrations and copper/selenium ratio, may serve as potential biomarkers for both quantity (binding affinity) and quality (neutralization) of humoral responses after inactivated COVID-19 vaccination. Furthermore, they hint at the potential of pre-vaccination dietary interventions, such as selenium supplementation, to improve vaccine efficacy. However, larger, diverse studies are needed to validate these findings. This research advances the understanding of the impact of micronutrients on vaccine response, offering the potential for personalized vaccination strategies.


Asunto(s)
COVID-19 , Selenio , Oligoelementos , Adulto , Humanos , Micronutrientes , Vacunas contra la COVID-19 , Cobre , COVID-19/prevención & control , SARS-CoV-2 , Zinc , Hierro , Vacunación , Anticuerpos Antivirales , Anticuerpos Neutralizantes
2.
Int Tinnitus J ; 27(2): 253-258, 2024 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-38507642

RESUMEN

The case study explores COVID-19 vaccination connection to tinnitus and hyperacusis, considering its onset and exacerbation post vaccination. The subject is a 47-year-old woman with a history of bilateral tinnitus, and her hearing history was tracked from 2014 to 2023. An intense episode of tinnitus occurred in 2021, distinct from previous experiences post COVID-19 vaccination, second dose. Symptoms manifested as sudden onset of hyperacusis, pronounced "roar" type tinnitus, and a sudden decline in hearing. Audiometric results showed reduce thresholds in low frequencies and lower speech scores in the left ear. This escalation significantly affects speech understanding in group conditions and noisy environments. There was a gradual improvement in tinnitus and hyperacusis severity, but the subject has a greater problem with speech understanding. The subject's journey involved visits to specialists, multiple testing including neuroimaging, naturopath consultations, and anxiety medication. It emphasizes the importance of healthcare practitioners recognizing and documenting these issues and need for timely multidisciplinary intervention and support. Further research is necessary to better understand the relationship between COVID-19, vaccination, and auditory symptoms.


Asunto(s)
COVID-19 , Acúfeno , Femenino , Humanos , Persona de Mediana Edad , Acúfeno/etiología , Acúfeno/diagnóstico , Hiperacusia/diagnóstico , Hiperacusia/etiología , Vacunas contra la COVID-19/efectos adversos , COVID-19/prevención & control , Audición
3.
Int Immunopharmacol ; 132: 111948, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38554445

RESUMEN

Cancer is attributed to uncontrolled cell growth and is among the leading causes of death with no known effective treatment while complex tumor microenvironment (TME) and multidrug resistance (MDR) are major challenges for developing an effective therapeutic strategy. Advancement in cancer immunotherapy has been limited by the over-activation of the host immune response that ultimately affects healthy tissues or organs and leads to a feeble response of the patient's immune system against tumor cells. Besides, traditional herbal medicines (THM) have been well-known for their essential role in the treatment of cancer and are considered relatively safe due to their compatibility with the human body. Yet, poor solubility, low bio-availability, and lack of understanding about their pathophysiological mechanism halt their clinical application. Moreover, considering the complex TME and drug resistance, the most precarious and least discussed concerns for developing THM-based nano-vaccination, are identification of specific biomarkers for drug inhibitory protein and targeted delivery of bioactive ingredients of THM on the specific sites in tumor cells. The concept of THM-based nano-vaccination indicates immunomodulation of TME by THM-based bioactive adjuvants, exerting immunomodulatory effects, via targeted inhibition of key proteins involved in the metastasis of cancer. However, this concept is at its nascent stage and very few preclinical studies provided the evidence to support clinical translation. Therefore, we attempted to capsulize previously reported studies highlighting the role of THM-based nano-medicine in reducing the risk of MDR and combating complex tumor environments to provide a reference for future study design by discussing the challenges and opportunities for developing an effective and safe therapeutic strategy against cancer.


Asunto(s)
Vacunas contra el Cáncer , Inmunoterapia , Nanovacunas , Neoplasias , Microambiente Tumoral , Animales , Humanos , Vacunas contra el Cáncer/inmunología , Resistencia a Múltiples Medicamentos , Resistencia a Antineoplásicos/efectos de los fármacos , Inmunoterapia/métodos , Neoplasias/inmunología , Neoplasias/terapia , Neoplasias/tratamiento farmacológico , Microambiente Tumoral/efectos de los fármacos , Microambiente Tumoral/inmunología
4.
Hum Vaccin Immunother ; 20(1): 2320505, 2024 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-38414114

RESUMEN

There is a growing political interest in health reforms in Africa, and many countries are choosing national health insurance as their main financing mechanism for universal health coverage. Although vaccination is an essential health service that can influence progress toward universal health coverage, it is not often prioritized by these national health insurance systems. This paper highlights the potential gains of integrating vaccination into the package of health services that is provided through national health insurance and recommends practical policy actions that can enable countries to harness these benefits at population level.


Asunto(s)
Financiación de la Atención de la Salud , Cobertura Universal del Seguro de Salud , Humanos , Programas Nacionales de Salud , África , Organización Mundial de la Salud , Seguro de Salud
5.
Indian J Med Microbiol ; 48: 100553, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38403267

RESUMEN

Crohn's disease is a chronic inflammatory disease of the gastrointestinal tract. Immunosuppressive therapy is the main treatment modality in Crohn's disease. Herpes zoster (HZ), caused by Varicella-zoster virus, is a relatively common albeit burdensome clinical picture mainly affecting adult population with immunosuppressive status. In this paper, we aimed to report a Crohn's disease patient with HZ to raise awareness on vaccination. There are commercially available vaccines that are shown to be safe and effective against HZ reactivation. Crohn's disease patients should be evaluated and informed about preventive options against HZ to prevent unwanted HZ-related complications.


Asunto(s)
Enfermedad de Crohn , Herpes Zóster , Humanos , Herpes Zóster/prevención & control , Vacunación , Herpesvirus Humano 3/inmunología , Adulto , Vacuna contra el Herpes Zóster/administración & dosificación , Vacuna contra el Herpes Zóster/inmunología , Masculino , Femenino
6.
Vaccines (Basel) ; 12(2)2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38400131

RESUMEN

Maintaining respiratory tract health is crucial for layers, impacting gut health, laying performance, and egg quality. Viral diseases and standard vaccinations can compromise tracheal epithelium function, leading to oxidative stress. This study assessed the impact of a blend of feed additives, predominantly lysozyme (L), essential oils (EO), and vitamins (VIT) (referred to as L + EO + VIT), on young layers during an oral vaccination schedule. The supplementation significantly enhanced antibody titers for Newcastle Disease Virus (NDV) and Infectious Bronchitis Virus (IBV) after vaccination, trachea functionality and intestinal health in the jejunum, increased egg production, and exhibited a trend toward higher egg weight. Although feed intake showed no significant difference, egg quality remained consistent across experimental groups. Moreover, L + EO + VIT supplementation elevated total phenolic content in eggs, improving oxidative stability in both fresh and stored eggs, particularly under iron-induced oxidation. Notably, it substantially reduced yolk lipid peroxidation and albumen protein carbonyls. In conclusion, water supplementation with L + EO + VIT may enhance humoral immune response to IBV and NDV, positively impacting hen productivity. These findings indicate improved tracheal function and enhanced oxidative stability, emphasizing the potential of this blend in promoting overall health and performance in layers.

7.
Vaccines (Basel) ; 12(2)2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38400159

RESUMEN

This study examines vaccine agreements in South Tyrol, Italy, within distinct socio-cultural and linguistic contexts. Using data from the 2021 and 2023 "COVID-19 Snapshot Monitoring" extended surveys, we assessed changes in attitudes towards COVID-19 and other vaccinations during the second and final years of the pandemic. Multivariate logistic regression analysis was used to examine factors such as trust in institutions, language groups, and the use of complementary and alternative medicine. The representativeness of the study is supported by good participation rates, ensuring a comprehensive view of attitudes towards vaccination in the region. The results show a shift in public agreement with the national vaccination plan to 64% by 2023, from a rate of about 73% agreement in 2021 (p < 0.001). A significant decrease in trust in health authorities and a negative correlation with complementary and alternative medicine consultations were observed. The results highlight the complex nature of vaccine hesitancy in diverse regions such as South Tyrol and underline the need for targeted communication strategies and trust-building initiatives to effectively reduce hesitancy. This study provides critical insights for the formulation of public health strategies in diverse sociocultural settings.

8.
J Health Polit Policy Law ; 49(4): 567-598, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38324348

RESUMEN

CONTEXT: In 2021, French health authorities strongly promoted vaccination against COVID-19. The authors assumed that refusing this vaccine became a stigma, and they investigated potential public stigma toward unvaccinated people among the French population. METHODS: A representative sample of the French adult population (N = 2,015) completed an online questionnaire in September 2021. The authors focused on participants who were already vaccinated against COVID-19 or intended to get vaccinated (N = 1,742). A cluster analysis was used to obtain contrasted attitudinal profiles, and the authors investigated associated factors with logistic regressions. FINDINGS: Regarding attitudes toward unvaccinated people, a majority of respondents supported several pejorative statements, and a significant minority also endorsed social rejection attitudes. The authors found four contrasting attitudinal profiles: moral condemnation only (32% of respondents), full stigma (26%), no stigma (26%), and stigma rejection (16%). Early vaccination, civic motives for it, faith in science, rejection of political extremes, and being aged 65 or older were the main factors associated with stigmatizing attitudes toward unvaccinated people. CONCLUSIONS: The authors found some evidence of stigmatization toward unvaccinated people, but further research is needed, especially to investigate perceived stigmatization among them. The authors discuss their results with reference to the concept of "folk devils" and from a public health perspective.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Estigma Social , Negativa a la Vacunación , Humanos , Francia , Masculino , Femenino , Persona de Mediana Edad , Adulto , Vacunas contra la COVID-19/administración & dosificación , Negativa a la Vacunación/psicología , Anciano , COVID-19/prevención & control , Encuestas y Cuestionarios , Adulto Joven , Adolescente , Vacunación/psicología
9.
Health Sci Rep ; 7(1): e1804, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38196568

RESUMEN

Background and aims: The World Health Organization has recently declared the frequent outbreaks of diphtheria in Nigeria as a public health concern. Although vaccination efforts have been successful in Nigeria, unfortunately, the recent 2023 outbreak in Nigeria has been nothing short of distressing. Of course, cases of diphtheria incidence are under-reported in Nigeria. This present article aims to proffer a possible multifaceted approach to tackle outbreaks of diphtheria in Nigeria and improve immunization rates against the disease among the Nigerian population. Methods: In writing this study, literature search was done about diphtheria in Nigeria using the following keywords: "diphtheria, prevalence, vaccination, efforts, challenges, and Nigeria" on PubMed, Web of Science, Google Scholar, and ResearchGate within 10 years. Result: This study found that an estimated seven million people remain unvaccinated and are at risk for infection in the country, especially people living in the Northern part of the country. Between the June 30 and August 31, 2023, Nigeria recorded an unusual increase in the number of confirmed cases of diphtheria, where a total of 5898 suspected cases were reported from 59 local government areas in 11 states across Nigeria. The majority (99.4%) of suspected cases of the disease were reported from six states: Kano (1816), Katsina (234), Yobe (158), Bauchi (79), Kaduna (45), and Borno (33). Conclusion: If Nigeria is to emerge beyond these frequent epidemics of diphtheria, the Nigerian government must work on tackling this issue on multiple fronts simultaneously, that is, at the national and international levels, as we believe that these levels would give a holistic way to unmask diphtheria in Nigeria.

10.
Am J Obstet Gynecol ; 230(5): 540.e1-540.e13, 2024 05.
Artículo en Inglés | MEDLINE | ID: mdl-38219855

RESUMEN

BACKGROUND: There is evidence suggesting that COVID-19 vaccination may be associated with small, transitory effects on uterine bleeding, possibly including menstrual timing, flow, and duration, in some individuals. However, changes in health care seeking, diagnosis, and workup for abnormal uterine bleeding in the COVID-19 vaccine era are less clear. OBJECTIVE: This study aimed to assess the impact of COVID-19 vaccination on incident abnormal uterine bleeding diagnosis and diagnostic evaluation in a large integrated health system. STUDY DESIGN: Using segmented regression, we assessed whether the availability of COVID-19 vaccines was associated with changes in monthly, population-based rates of incident abnormal uterine bleeding diagnoses relative to the prepandemic period in health system members aged 16 to 44 years who were not menopausal. We also compared clinical and demographic characteristics of patients diagnosed with incident abnormal uterine bleeding between December 2020 and October 13, 2021 by vaccination status (never vaccinated, vaccinated in the 60 days before diagnosis, vaccinated >60 days before diagnosis). Furthermore, we conducted detailed chart review of patients diagnosed with abnormal uterine bleeding within 1 to 60 days of COVID-19 vaccination in the same time period. RESULTS: In monthly populations ranging from 79,000 to 85,000 female health system members, incidence of abnormal uterine bleeding diagnosis per 100,000 person-days ranged from 8.97 to 19.19. There was no significant change in the level or trend in the incidence of abnormal uterine bleeding diagnoses between the prepandemic (January 2019-January 2020) and post-COVID-19 vaccine (December 2020-December 2021) periods. A comparison of clinical characteristics of 2717 abnormal uterine bleeding cases by vaccination status suggested that abnormal bleeding among recently vaccinated patients was similar or less severe than abnormal bleeding among patients who had never been vaccinated or those vaccinated >60 days before. There were also significant differences in age and race of patients with incident abnormal uterine bleeding diagnoses by vaccination status (Ps<.02). Never-vaccinated patients were the youngest and those vaccinated >60 days before were the oldest. The proportion of patients who were Black/African American was highest among never-vaccinated patients, and the proportion of Asian patients was higher among vaccinated patients. Chart review of 114 confirmed postvaccination abnormal uterine bleeding cases diagnosed from December 2020 through October 13, 2021 found that the most common symptoms reported were changes in timing, duration, and volume of bleeding. Approximately one-third of cases received no diagnostic workup; 57% had no etiology for the bleeding documented in the electronic health record. In 12% of cases, the patient mentioned or asked about a possible link between their bleeding and their recent COVID-19 vaccine. CONCLUSION: The availability of COVID-19 vaccination was not associated with a change in incidence of medically attended abnormal uterine bleeding in our population of over 79,000 female patients of reproductive age. In addition, among 2717 patients with abnormal uterine bleeding diagnoses in the period following COVID-19 vaccine availability, receipt of the vaccine was not associated with greater bleeding severity.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Hemorragia Uterina , Humanos , Femenino , Vacunas contra la COVID-19/efectos adversos , Adulto , Hemorragia Uterina/etiología , Adulto Joven , COVID-19/prevención & control , COVID-19/complicaciones , Adolescente , Incidencia , SARS-CoV-2 , Vacunación/efectos adversos , Vacunación/estadística & datos numéricos
11.
Am J Obstet Gynecol ; 230(1): 71.e1-71.e14, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37726057

RESUMEN

BACKGROUND: There is a growing literature base regarding menstrual changes following COVID-19 vaccination among premenopausal people. However, relatively little is known about uterine bleeding in postmenopausal people following COVID-19 vaccination. OBJECTIVE: This study aimed to examine trends in incident postmenopausal bleeding diagnoses over time before and after COVID-19 vaccine introduction, and to describe cases of new-onset postmenopausal bleeding after COVID-19 vaccination. STUDY DESIGN: For postmenopausal bleeding incidence calculations, monthly population-level cohorts consisted of female Kaiser Permanente Northwest members aged ≥45 years. Those diagnosed with incident postmenopausal bleeding in the electronic medical record were included in monthly numerators. Members with preexisting postmenopausal bleeding or abnormal uterine bleeding, or who were at increased risk of bleeding due to other health conditions, were excluded from monthly calculations. We used segmented regression analysis to estimate changes in the incidence of postmenopausal bleeding diagnoses from 2018 through 2021 in Kaiser Permanente Northwest members meeting the inclusion criteria, stratified by COVID-19 vaccination status in 2021. In addition, we identified all members with ≥1 COVID-19 vaccination between December 14, 2020 and August 14, 2021, who had an incident postmenopausal bleeding diagnosis within 60 days of vaccination. COVID-19 vaccination, diagnostic procedures, and presumed bleeding etiology were assessed through chart review and described. A temporal scan statistic was run on all cases without clear bleeding etiology. RESULTS: In a population of 75,530 to 82,693 individuals per month, there was no statistically significant difference in the rate of incident postmenopausal bleeding diagnoses before and after COVID-19 vaccine introduction (P=.59). A total of 104 individuals had incident postmenopausal bleeding diagnosed within 60 days following COVID-19 vaccination; 76% of cases (79/104) were confirmed as postvaccination postmenopausal bleeding after chart review. Median time from vaccination to bleeding onset was 21 days (range: 2-54 days). Among the 56 postmenopausal bleeding cases with a provider-attributed etiology, the common causes of bleeding were uterine or cervical lesions (50% [28/56]), hormone replacement therapy (13% [7/56]), and proliferative endometrium (13% [7/56]). Among the 23 cases without a clear etiology, there was no statistically significant clustering of postmenopausal bleeding onset following vaccination. CONCLUSION: Within this integrated health system, introduction of COVID-19 vaccines was not associated with an increase in incident postmenopausal bleeding diagnoses. Diagnosis of postmenopausal bleeding in the 60 days following receipt of a COVID-19 vaccination was rare.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Humanos , Femenino , Vacunas contra la COVID-19/efectos adversos , Posmenopausia , COVID-19/epidemiología , COVID-19/prevención & control , COVID-19/complicaciones , Hemorragia Uterina/epidemiología , Hemorragia Uterina/etiología , Vacunación/efectos adversos
12.
Vet Res Commun ; 48(1): 403-416, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37736869

RESUMEN

This study aimed to assess the efficacy of an anticoccidial vaccine and the anticoccidial activity of Aloe vera in broiler chickens infected with Eimeria tenella (E. tenella). A total of 225 healthy, sexless, one-day-old broiler chicks (avian48) from a commercial broiler company were randomized into nine experimental groups of 25 chicks. The groups were as follows: Group 1 (control, vaccinated, non-infected), Group 2 (vaccinated and infected with 5 × 104 sporulated oocysts), Group 3 (vaccinated, infected with 5 × 104 sporulated oocysts, and treated with Aloe vera), Group 4 (infected with 5 × 104 sporulated oocysts and treated with Aloe vera), Group 5 (positive control, infected with 5 × 104 sporulated oocysts), Group 6 (challenged with 5 × 104 sporulated oocysts and then treated with amprolium), Group 7 (treated with amprolium), Group 8 (blank control negative group), and Group 9 (treated with Aloe vera gel).Various parameters were evaluated, including clinical signs, growth performance, oocyst shedding, hematological and immunological parameters, and pathological lesion scoring. The results demonstrated that Aloe vera improved growth performance, reduced oocyst shedding, and decreased caecal lesion scores in E. Tenella-infected broiler chicks. The use of Aloe vera in combination with either amprolium or anticoccidial vaccines provided a potential solution to the issues of drug resistance and drug residues.In conclusion, this study provides valuable insights regarding the control of coccidiosis in broilers. Supplementing the chicken diet with Aloe vera had beneficial effects on the pathogenicity and infectivity of E. tenella, making it a cost-effective alternative as an herbal extract with no adverse side effects for coccidiosis control. These findings suggest that Aloe vera can be considered a potential candidate for inclusion in broiler diets for effective coccidiosis control.


Asunto(s)
Aloe , Coccidiosis , Eimeria tenella , Enfermedades de las Aves de Corral , Animales , Pollos , Amprolio/farmacología , Amprolio/uso terapéutico , Coccidiosis/tratamiento farmacológico , Coccidiosis/prevención & control , Coccidiosis/veterinaria , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Oocistos , Vacunación/veterinaria , Enfermedades de las Aves de Corral/tratamiento farmacológico , Enfermedades de las Aves de Corral/prevención & control
13.
J Osteopath Med ; 124(4): 163-170, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38011280

RESUMEN

CONTEXT: Anecdotal evidence suggested that osteopathic manipulative treatment (OMT) may have imparted survivability to patients in osteopathic hospitals during the 1918 influenza pandemic. In addition, previous OMT research publications throughout the past century have shown evidence of increased lymphatic movement, resulting in improved immunologic function qualitatively and quantitatively. OBJECTIVES: The following is a description of a proposed protocol to evaluate OMT effects on antibody generation in the peripheral circulation in response to a vaccine and its possible use in the augmentation of various vaccines. This protocol will serve as a template for OMT vaccination studies, and by adhering to the gold standard of randomized controlled trials (RCTs), future studies utilizing this outline may contribute to the much-needed advancement of the scientific literature in this field. METHODS: This manuscript intends to describe a protocol that will demonstrate increased antibody titers to a vaccine through OMT utilized in previous historical studies. Confirmation data will follow this manuscript validating the protocol. Study participants will be divided into groups with and without OMT with lymphatic pumps. Each group will receive the corresponding vaccine and have antibody titers measured against the specific vaccine pathogen drawn at determined intervals. RESULTS: These results will be statistically evaluated. Our demonstration of a rational scientific OMT vaccine antibody augmentation will serve as the standard for such investigation that will be reported in the future. These vaccines could include COVID-19 mRNA, influenza, shingles, rabies, and various others. The antibody response to vaccines is the resulting conclusion of its administration. Osteopathic manipulative medicine (OMM) lymphatic pumps have, in the past through anecdotal reports and smaller pilot studies, shown effectiveness on peripheral immune augmentation to vaccines. CONCLUSIONS: This described protocol will be the template for more extensive scientific studies supporting osteopathic medicine's benefit on vaccine response. The initial vaccine studies will include the COVID-19 mRNA, influenza, shingles, and rabies vaccines.


Asunto(s)
COVID-19 , Herpes Zóster , Gripe Humana , Osteopatía , Vacunas , Humanos , Osteopatía/métodos , Vacunación , Inmunidad , ARN Mensajero
14.
Med Decis Making ; 44(2): 175-188, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38159263

RESUMEN

BACKGROUND: The potential for selection bias in nonrepresentative, large-scale, low-cost survey data can limit their utility for population health measurement and public health decision making. We developed an approach to bias adjust county-level COVID-19 vaccination coverage predictions from the large-scale US COVID-19 Trends and Impact Survey. DESIGN: We developed a multistep regression framework to adjust for selection bias in predicted county-level vaccination coverage plateaus. Our approach included poststratification to the American Community Survey, adjusting for differences in observed covariates, and secondary normalization to an unbiased reference indicator. As a case study, we prospectively applied this framework to predict county-level long-run vaccination coverage among children ages 5 to 11 y. We evaluated our approach against an interim observed measure of 3-mo coverage for children ages 5 to 11 y and used long-term coverage estimates to monitor equity in the pace of vaccination scale up. RESULTS: Our predictions suggested a low ceiling on long-term national vaccination coverage (46%), detected substantial geographic heterogeneity (ranging from 11% to 91% across counties in the United States), and highlighted widespread disparities in the pace of scale up in the 3 mo following Emergency Use Authorization of COVID-19 vaccination for 5- to 11-y-olds. LIMITATIONS: We relied on historical relationships between vaccination hesitancy and observed coverage, which may not capture rapid changes in the COVID-19 policy and epidemiologic landscape. CONCLUSIONS: Our analysis demonstrates an approach to leverage differing strengths of multiple sources of information to produce estimates on the time scale and geographic scale necessary for proactive decision making. IMPLICATIONS: Designing integrated health measurement systems that combine sources with different advantages across the spectrum of timeliness, spatial resolution, and representativeness can maximize the benefits of data collection relative to costs. HIGHLIGHTS: The COVID-19 pandemic catalyzed massive survey data collection efforts that prioritized timeliness and sample size over population representativeness.The potential for selection bias in these large-scale, low-cost, nonrepresentative data has led to questions about their utility for population health measurement.We developed a multistep regression framework to bias adjust county-level vaccination coverage predictions from the largest public health survey conducted in the United States to date: the US COVID-19 Trends and Impact Survey.Our study demonstrates the value of leveraging differing strengths of multiple data sources to generate estimates on the time scale and geographic scale necessary for proactive public health decision making.


Asunto(s)
COVID-19 , Cobertura de Vacunación , Niño , Humanos , Estados Unidos/epidemiología , Vacunas contra la COVID-19/uso terapéutico , Pandemias , COVID-19/epidemiología , COVID-19/prevención & control , Encuestas y Cuestionarios , Vacunación
15.
Animals (Basel) ; 13(23)2023 Dec 02.
Artículo en Inglés | MEDLINE | ID: mdl-38067085

RESUMEN

Nucleotides, short-chain fructooligosaccharides (scFOS), xylooligosaccharides (XOS), ß-carotene and vitamin E are reported to enhance immune function; however, the evidence of this in cats is limited. The aim of this study was to determine the immunomodulatory effects of these ingredients in kittens. Forty domestic short hair kittens were designated in litters to control or test diet for 28 weeks. Test diet was fortified with 0.33 g nucleotides, 0.45 g scFOS, 0.3 g XOS, 0.7 mg ß-carotene and 66.5 mg vitamin E per 100 g diet. Kittens were vaccinated against feline parvovirus (FPV) and herpesvirus (FHV) at 10, 14 and 18 weeks. Kittens remained healthy, with no measured evidence of adverse health. Serum FPV and FHV antibody titres were significantly (p < 0.05) higher in the test diet group at week 23 and 27, respectively. A significantly (p < 0.05) higher proportion of test diet group kittens demonstrated an adequate response (four-fold titre increase) to FHV vaccination and a significantly (p < 0.05) higher proportion reached a protective antibody titre for FHV. Serum IgM was significantly (p < 0.05) higher in the test diet group. The test diet group demonstrated a stronger humoral immune response to vaccination, suggesting the diet supports immune defence, enabling a greater response to immune challenges.

16.
Cureus ; 15(11): e49523, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-38156129

RESUMEN

This review article provides a comprehensive analysis of the role of human papillomavirus (HPV) vaccination in empowering women's health by preventing invasive cervical cancer. Cervical cancer remains a significant global health concern, with HPV infection identified as a primary causative factor. The review synthesizes current research findings, epidemiological data, and clinical outcomes to offer a nuanced understanding of the impact of HPV vaccination on cervical cancer prevention. The article explores the biology of HPV, emphasizing its association with cervical carcinogenesis and the development of precancerous lesions. It delves into the epidemiology of HPV infection, highlighting the global prevalence and the burden of cervical cancer, particularly in low-resource settings. The socio-economic factors influencing HPV transmission and cervical cancer incidence are also discussed. The focus of the review is on the efficacy and safety of HPV vaccines, including an examination of vaccine types, dosages, and long-term effectiveness. Insights into the immunological responses triggered by vaccination, as well as the duration of protection against HPV infection and associated cancers, are presented. Special attention is given to addressing myths and misconceptions surrounding HPV vaccination, aiming to enhance public awareness and acceptance. Additionally, the review discusses the impact of vaccination programs on population-wide HPV prevalence and the subsequent reduction in cervical cancer rates. It explores challenges related to vaccine accessibility, affordability, and coverage, especially in underserved populations. Strategies for improving vaccine uptake and ensuring equitable distribution are considered, with a focus on empowering women through education and healthcare access. Furthermore, the article touches upon emerging trends in HPV research, such as the development of next-generation vaccines, therapeutic interventions for existing infections, and the potential for global HPV elimination. The integration of HPV vaccination into comprehensive women's health programs is advocated, emphasizing the importance of a holistic approach to cervical cancer prevention. In conclusion, this review provides a multifaceted exploration of HPV vaccination as a pivotal tool in empowering women's health by preventing invasive cervical cancer. The synthesis of current knowledge underscores the need for continued research, education, and global collaboration to ensure the widespread success of HPV vaccination initiatives, ultimately contributing to the advancement of women's health worldwide.

17.
Indian J Community Med ; 48(5): 727-733, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37970165

RESUMEN

Backgrounds: The Universal Immunization Program of India is one of the most cost-effective interventions in public health. Missing or delaying vaccination may elicit an uncertain immune response in the body, making the population susceptible to vaccine-preventable diseases. The objectives of this study were to determine the coverage of newborn immunization for birth doses under the National Immunization Schedule and its epidemiological determinants in the rural areas of the Dehradun district, Uttarakhand. Materials and Methods: A community-based cross-sectional study was conducted for a period of one year with a sample size of 570. World Health Organization (WHO) 30 Cluster sampling technique was used with 19 children in each cluster. The data on determinants were collected using a semi-structured, pre-designed schedule through a house-to-house survey. Multivariate analysis was conducted to identify factors associated with immunization coverage, taking the significance level as P < 0.05. Results: The coverage of the Bacillus Calmette-Guérin vaccine, oral polio vaccine zero dose and hepatitis B birth dose were 100%, 91.9%, and 58.8%, respectively in the study area with an overall prevalence of incomplete coverage of newborn immunization as 42.5%. The most cited reason for children being unimmunized with birth doses was the unavailability of vaccines at the birthplace center (29.6%). Conclusions: The prevalence of incomplete coverage of newborn immunization was quite high, which was undermining the holistic approach of the National Immunization Program. Vaccine availability and accessibility at the birthplace with capacity building and training of the healthcare workers may be considered to ensure coverage of birth doses.

19.
Vaccine ; 41(48): 7281-7289, 2023 11 22.
Artículo en Inglés | MEDLINE | ID: mdl-37923694

RESUMEN

The H9N2 subtype avian influenza virus (AIV) is a low pathogenic AIV that infects avian species and lead to huge economical losses in the poultry industry. The unique immunomodulatory properties of Retinoic acid (RA), an active component of vitamin A, highlights its potential to enhance chicken's resistance to infectious diseases and perhaps vaccine-induced immunity. Therefore, the present study evaluated the effects of in ovo supplementation of RA on the immunogenicity and protective efficacy of an inactivated avian influenza virus vaccine. On embryonic day 18, eggs were inoculated with either 90 µmol RA/200 µL/egg or diluent into the amniotic sac. On days 7 and 21 post-hatch, birds were vaccinated with 15 µg of ß-propiolactone (BPL) inactivated H9N2 virus via the intramuscular route. One group received BPL in combination with an adjuvant, while the other group received saline solution and served as a non-vaccinated control group. Serum samples were collected on days 7, 14, 21, 28, 35, and 42 post-primary vaccination (ppv) for antibody analysis. On day 24 ppv, spleens were collected, and splenocytes were isolated to analyze cytokine expression, interferon gamma (IFN-γ) production, and cell population. On day 28 ppv, birds in all groups were infected with H9N2 virus and oral and cloacal swabs were collected for TCID50 (50 % Tissue Culture Infectious Dose) assay up to day 7 post-infection. The results demonstrated that in ovo administration of RA did not significantly enhance the AIV vaccine-induced antibody response against H9N2 virus compared to the group that received the vaccine alone. However, RA supplementation enhanced the frequency of macrophages (KUL01+), expression of inflammatory cytokines and production of IFN-γ by splenocytes. In addition, RA administration reduced oral shedding of AIV on day 5 post-infection. In conclusion, these findings suggest that RA can be supplemented in ovo to enhance AIV vaccine efficacy against LPAIV.


Asunto(s)
Subtipo H9N2 del Virus de la Influenza A , Vacunas contra la Influenza , Gripe Aviar , Animales , Gripe Aviar/prevención & control , Tretinoina , Pollos , Inmunidad Celular , Vacunas de Productos Inactivados , Anticuerpos Antivirales
20.
Bioimpacts ; 13(6): 439-455, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38022382

RESUMEN

Introduction: Immunotherapy has revolutionized how cancer is treated. Many of these immunotherapies rely on ex vivo expansion of immune cells, classically T cells. Still, several immunological obstacles remain, including tumor impermeability by immune cells and the immunosuppressive nature of the tumor microenvironment (TME). Logistically, high costs of treatment and variable clinical responses have also plagued traditional T cell-based immunotherapies. Methods: To review the existing literature on cellular immunotherapy, the PubMed database was searched for publications using variations of the phrases "cancer immunotherapy", "ex vivo expansion", and "adoptive cell therapy". The Clinicaltrials.gov database was searched for clinical trials related to ex vivo cellular therapies using the same phrases. The National Comprehensive Cancer Network guidelines for cancer treatment were also referenced. Results: To circumvent the challenges of traditional T cell-based immunotherapies, researchers have developed newer therapies including tumor infiltrating lymphocyte (TIL), chimeric antigen receptor (CAR), T cell receptor (TCR) modified T cell, and antibody-armed T cell therapies. Additionally, newer immunotherapeutic strategies have used other immune cells, including natural killer (NK) and dendritic cells (DC), to modulate the T cell immune response to cancers. From a prognostic perspective, circulating tumor cells (CTC) have been used to predict cancer morbidity and mortality. Conclusion: This review highlights the mechanism and clinical utility of various types of ex vivo cellular therapies in the treatment of cancer. Comparing these therapies or using them in combination may lead to more individualized and less toxic chemotherapeutics.

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