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1.
Braz J Microbiol ; 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38561499

RESUMEN

Mucormycosis is the third most frequent invasive mycosis, following candidiasis and aspergillosis. It is frequently neglected due to its rare occurrence; but recently attend the status of notifiable disease due to its higher incidence in both developed and developing nations. India has received global notice since its estimated instances were greater than the global estimated figures. Mucormycosis has several clinical manifestations, including rhino-orbital-cerebral (ROCM), pulmonary, gastrointestinal, cutaneous, renal, and diffuse Mucormycosis. ROCM is the most frequent clinical manifestation in India, although pulmonary mucormycosis is prevalent worldwide. This review also discusses host defenses, pre disposing risk factors and fungal virulence factors that impair host's ability to prevent fungus invasion and disease establishment. The diagnosis of the disease depends on clinical interventions, histological or microbiological procedures along with molecular methods to obtain timely results. But there are still unmet challenges for rapid diagnosis of the disease. Treatment of the disease is achieved by multimodal approaches such as reversal of underlying predisposing factors, rapid administration of antifungals in optimal doses and surgical procedures to remove infected tissues. Liposomal Amphotericin B, Posaconazole and Isavuconazoles are preferred as the first line of treatment procedures. clinical trials. Different studies have improved the existing drug and under clinical trials while several studies predicted the new potential targets as CotH and Ftr1 as shown in infection and in vitro models. Therefore, current scenario demands a multidisciplinary approach is needed to investigate the prevalence, pathogenesis which is highly important for the advancement of rapid diagnosis and effective treatment.

2.
Indian J Tuberc ; 71(2): 147-152, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38589118

RESUMEN

BACKGROUND: Modelling studies have indicated that approximately 20% of all tuberculosis (TB) cases may suffer from diabetes mellitus (DM). DM increases the risk of developing active TB disease by 2-3 times. People living with HIV (PLHIV) are more likely to develop TB disease, and TB is a leading cause of hospitalization and death among PLHIV. Despite the substantial burden of DM and HIV in India, few studies have evaluated the prevalence of DM and HIV among active cases of TB, and its impact on the treatment outcome for TB. This study evaluated the burden of HIV and DM in TB cases from Odisha during 2019, and its impact on the TB treatment outcome. METHODS: The study utilized data on TB patients of Odisha during 2019, from the NIKSHAY portal, the health management information system (HMIS) of TB in India. This is a retrospective observational registry-based cohort study, which evaluated a linkage between socio-demographic predictors, clinical diagnostic and treatment predictors, time of treatment predictors, and co-morbidity with TB. Data were retrieved electronically in Microsoft-Excel and analysis was done using STATA 16 (StataCorp. 2019, College Station, TX: StataCorp LLC). RESULTS: Data for 47,831 TB cases of Odisha as study population was extracted from the Nikshay application for the year 2019. The highest prevalence (31.1%, 14,863/47,831) of TB was observed among young participants aged 15-30 years, whereas the prevalence was least among children <14 years (4.4%, 2124/47,831). Males had a higher prevalence of TB (66.7%, 31,878/47,831). Of the 47,831 TB cases included in the study, 7.6% (3659/47,831) had diabetes mellitus (DM), along with TB. 1.2% (571/47,831) had HIV along with TB, while only 0.08% (37/47,831) had both DM and HIV along with TB. 88.2% (3148/3569) of cases with DM and TB had a favorable outcome, compared to 82.3% (449/541) of cases with HIV and TB. People with TB who did not have DM had a significantly higher favorable outcome (OR 1.6, 95% CI 1.5-1.8) compared to those with TB and DM. Similarly, TB cases who did not have HIV infection had a significantly higher favorable outcome (OR 2.4, 95% CI 1.9-3.0) compared to those with TB and HIV. CONCLUSION: Our study showed that presence of DM and/or HIV in TB patients had an impact on the TB treatment outcome. There is a crucial need to prevent comorbidities such as DM and HIV from occurring and to prioritize early diagnosis and management of these conditions.


Asunto(s)
Diabetes Mellitus , Infecciones por VIH , Tuberculosis , Niño , Humanos , Masculino , Estudios de Cohortes , Diabetes Mellitus/epidemiología , VIH , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , India/epidemiología , Tuberculosis/complicaciones , Tuberculosis/tratamiento farmacológico , Tuberculosis/epidemiología , Femenino , Adolescente , Adulto Joven , Adulto
3.
Clin Pharmacol Ther ; 115(2): 324-332, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37983978

RESUMEN

Induction of mycobacterial efflux pumps is a cause of Mycobacterium tuberculosis (Mtb) drug tolerance, a barrier to shortening antitubercular treatment. Verapamil inhibits Mtb efflux pumps that mediate tolerance to rifampin, a cornerstone of tuberculosis (TB) treatment. Verapamil's mycobacterial efflux pump inhibition also limits Mtb growth in macrophages in the absence of antibiotic treatment. These findings suggest that verapamil could be used as an adjunctive therapy for TB treatment shortening. However, verapamil is rapidly and substantially metabolized when co-administered with rifampin. We determined in a dose-escalation clinical trial of persons with pulmonary TB that rifampin-induced clearance of verapamil can be countered without toxicity by the administration of larger than usual doses of verapamil. An oral dosage of 360 mg sustained-release (SR) verapamil given every 12 hours concomitantly with rifampin achieved median verapamil exposures of 903.1 ng.h/mL (area under the curve (AUC)0-12 h ) in the 18 participants receiving this highest studied verapamil dose; these AUC findings are similar to those in persons receiving daily doses of 240 mg verapamil SR but not rifampin. Moreover, norverapamil:verapamil, R:S verapamil, and R:S norverapamil AUC ratios were all significantly greater than those of historical controls receiving SR verapamil in the absence of rifampin. Thus, rifampin administration favors the less-cardioactive verapamil metabolites and enantiomers that retain similar Mtb efflux inhibitory activity to verapamil, increasing overall benefit. Finally, rifampin exposures were 50% greater after verapamil administration, which may also be advantageous. Our findings suggest that a higher dosage of verapamil can be safely used as adjunctive treatment in rifampin-containing treatment regimens.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis , Humanos , Antituberculosos/farmacología , Rifampin , Tuberculosis/tratamiento farmacológico , Tuberculosis/microbiología , Verapamilo/metabolismo
4.
Indian J Pathol Microbiol ; 66(4): 764-769, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38084529

RESUMEN

Background: Compared to conventional microscopy, the cartridge-based nucleic acid amplification test (CBNAAT, Xpert MTB/RIF, Cepheid, USA) has the dual advantage of higher sensitivity to detect Mycobacterium tuberculosis (M. tb), and the ability to detect rifampicin resistance. Aim: To evaluate the impact of the CBNAAT on the detection of pulmonary and extra-pulmonary tuberculosis from private and public healthcare facilities in Bhubaneswar, Odisha. Materials and Methods: The study included specimens received between June 2015 to February 2017 from public and private health sectors for tuberculosis diagnosis at a national reference laboratory for tuberculosis in Bhubaneswar, where the CBNAAT was initiated in February 2016. We retrospectively collected the patients' socio-demographic characteristics from their test request form, CBNAAT results from the CBNAAT register and PMDT culture and drug susceptibility testing (DST) register and validated the data by comparing the patient details and test results from the CBNAAT software. Results: From June 2015 to January 2016, 106 samples were received from Bhubaneswar at the reference laboratory, of which there were zero referrals from the private sector and zero referrals of extra-pulmonary tuberculosis (TB) samples. After initiation of the CBNAAT, from February 2016 to February 2017, 1262 specimens were received, of which 55.2% (696/1262), 17.8% (225/1262), 17.2% (217/1262), and 9.8% (124/1262) were from government hospitals and medical colleges, private hospitals, private practitioners, and district TB centers, respectively. Conclusion: The availability of TB diagnostics at public sector facilities to patients from private sectors and the rollout of the CBNAAT increased the referral of patients from private health facilities and the referral of paucibacillary non-sputum samples.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis Extrapulmonar , Tuberculosis Pulmonar , Tuberculosis , Humanos , Mycobacterium tuberculosis/genética , Tuberculosis Pulmonar/diagnóstico , Pruebas de Sensibilidad Microbiana , Estudios Retrospectivos , Sensibilidad y Especificidad , Tuberculosis/diagnóstico , Rifampin , Técnicas de Amplificación de Ácido Nucleico
5.
PLoS One ; 18(12): e0294254, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38127931

RESUMEN

Recurrent Tuberculosis patients contribute to a significant proportion of TB burden in India. A nationwide survey was conducted during 2019-2021 across India among adults to estimate the prevalence of TB. A total of 322480 individuals were screened and 1402 were having TB. Of this, 381 (27.1%) had recurrent TB. The crude prevalence (95% CI) of recurrent TB was 118 (107-131) per 100,000 population. The median duration between episodes of TB was 24 months. The proportion of drug resistant TB was 11.3% and 3.6% in the recurrent group and new TB patients respectively. Higher prevalence of recurrent TB was observed in elderly, males, malnourished, known diabetics, smokers, and alcohol users. (p<0.001). To prevent TB recurrence, all treated tuberculosis patients must be followed at least for 24 months, with screening for Chest X-ray, liquid culture every 6 months, smoking cessation, alcohol cessation, nutritional interventions and good diabetic management.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis Pulmonar , Tuberculosis , Adulto , Masculino , Humanos , Anciano , Prevalencia , Tuberculosis Pulmonar/epidemiología , Tuberculosis Pulmonar/prevención & control , Tuberculosis Pulmonar/tratamiento farmacológico , Tuberculosis/epidemiología , Encuestas y Cuestionarios , India/epidemiología
6.
J Biomol Struct Dyn ; : 1-16, 2023 Dec 27.
Artículo en Inglés | MEDLINE | ID: mdl-38149850

RESUMEN

Resistance to azoles and amphotericin B especially in Aspergillus fumigatus is a growing concern towards the treatment of invasive fungal infection. At this critical juncture, intein splicing would be a productive, and innovative target to establish therapies against resistant strains. Intein splicing is the central event for the activation of host protein, essential for the growth and survival of various microorganisms including A. fumigatus. The splicing process is a four-step protease-like nucleophilic cascade. Thus, we hypothesise that protease inhibitors would successfully halt intein splicing and potentially restrict the growth of the aforementioned pathogen. Using Rosetta Fold and molecular dynamics simulations, we modelled Prp8 intein structure; resembling classic intein fold with horse shoe shaped splicing domain. To fully comprehend the active site of Afu Prp8 intein, C1, T62, H65, H818, N819 from intein sequences and S820, the first C-extein residue are selected. Molecular docking shows that two FDA-approved drugs, i.e. Lufotrelvir and Remdesivir triphosphate efficiently interact with Prp8 intein from the assortment of 212 protease inhibitors. MD simulation portrayed that Prp8 undergoes conformational change upon ligand binding, and inferred the molecular recognition and stability of the docked complexes. Per-residue decomposition analysis confirms the importance of F: block R802, V803, and Q807 binding pocket in intein splicing domain towards recognition of inhibitors, along with active site residues through strong hydrogen bonds and hydrophobic contacts. However, in vitro and in vivo assays are required to confirm the inhibitory action on Prp8 intein splicing; which may pave the way for the development of new antifungals for A. fumigatus.Communicated by Ramaswamy H. Sarma.

7.
Front Public Health ; 11: 1218292, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37927860

RESUMEN

Background: Over time, COVID-19 testing has significantly declined across the world. However, it is critical to monitor the virus through surveillance. In late 2020, WHO released interim guidance advising the use of the existing Global Influenza Surveillance and Response System (GISRS) for the integrated surveillance of influenza and SARS-CoV-2. Methods: In July 2021, we initiated a pan-India integrated surveillance for influenza and SARS-CoV-2 through the geographically representative network of Virus Research and Diagnostic Laboratories (VRDLs) across 26 hospital and laboratory sites and 70 community sites. A total of 34,260 cases of influenza-like illness (ILI) and Severe acute respiratory infection (SARI) were enrolled from 4 July 2021 to 31 October 2022. Findings: Influenza A(H3) and B/Victoria dominated during 2021 monsoon season while A(H1N1)pdm09 dominated during 2022 monsoon season. The SARS-CoV-2 "variants of concern" (VoC) Delta and Omicron predominated in 2021 and 2022, respectively. Increased proportion of SARI was seen in extremes of age: 90% cases in < 1 year; 68% in 1 to 5 years and 61% in ≥ 8 years age group. Approximately 40.7% of enrolled cases only partially fulfilled WHO ILI and SARI case definitions. Influenza- and SARS-CoV-2-infected comorbid patients had higher risks of hospitalization, ICU admission, and oxygen requirement. Interpretation: The results depicted the varying strains and transmission dynamics of influenza and SARS-CoV-2 viruses over time, thus emphasizing the need to continue and expand surveillance across countries for improved decision making. The study also describes important information related to clinical outcomes of ILI and SARI patients and highlights the need to review existing WHO ILI and SARI case definitions.


Asunto(s)
Subtipo H1N1 del Virus de la Influenza A , Gripe Humana , Neumonía , Virosis , Humanos , Gripe Humana/epidemiología , Prueba de COVID-19 , Subtipo H1N1 del Virus de la Influenza A/genética , Genómica , India/epidemiología
8.
J Infect Public Health ; 16(12): 2058-2065, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37948837

RESUMEN

BACKGROUND: The risk of tuberculosis (TB) disease is higher in individuals with TB infection. In a TB endemic country like India, it is essential to understand the current burden of TB infection at the population level. The objective of the present analysis is to estimate the prevalence of TB infection in India and to explore the factors associated with TB infection. METHODS: Individuals aged > 15 years in the recently completed National TB prevalence survey in India who were tested for TB infection by QuantiFERON-TB Gold Plus (QFT-Plus) assay were considered for this sub-analysis. TB infection was defined as positive by QFT-Plus (value >0.35 IU/ml). The estimates for prevalence, prevalence ratio (PR) and adjusted risk ratio (aRR) estimates with 95% confidence intervals (CIs) were calculated. RESULTS: Of the 16864 individuals analysed, the prevalence of TB infection was 22.6% (95% CI:19.4 -25.8). Factors more likely to be associated with TB infection include age > 30 years (aRR:1.49;95% CI:1.29-1.73), being male (aRR:1.26; 95%CI: 1.18-1.34), residing in urban location (aRR:1.58; 95%CI: 1.03-2.43) and past history of TB (aRR:1.49; 95%CI: 1.26-1.76). CONCLUSION: About one fourth (22.6%) of the individuals were infected with TB in India. Individuals aged > 30 years, males, residing in urban location, and those with past history of TB were more likely to have TB infection. Targeted interventions for prevention of TB and close monitoring are essential to reduce the burden of TB in India.


Asunto(s)
Tuberculosis Latente , Tuberculosis , Humanos , Masculino , Femenino , Prevalencia , Tuberculosis/epidemiología , Tuberculosis Latente/epidemiología , India/epidemiología , Ensayos de Liberación de Interferón gamma , Prueba de Tuberculina
9.
J Microsc Ultrastruct ; 11(3): 172-178, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38025188

RESUMEN

Background: Incidence of human papillomavirus (HPV)-associated oral and oropharyngeal squamous cell carcinomas (OSCC and OPSCC) is on a rising trend globally and has specific therapeutic implications. HPV-related tumors have a distinct pathogenetic mechanism targeting p16 and p53 both. However, there are limited studies evaluating p16 and p53 expression in combination. Aim: The aim of the study is to evaluate p16 and p53 immunohistochemical expression pattern in OSCC and OPSCC, with special reference to HPV association. Study Design: This was a hospital-based prospective study done over 22 months (September 2018 to June 2020), including a total of 54 cases of OSCC and OPSCC. They were subjected to clinicopathological evaluation, p16 and p53 immunohistochemistry, and DNA polymerase chain reaction testing for testing of HPV association, followed by analysis of data by statistical methods. Results: Out of 54, 43 cases were OSCC and 11 cases were OPSCC. A total of nine cases were HPV positive. HPV association was found to be significant with tonsil as primary site, age range between 40 and 60 years, and absence of tobacco or alcohol habit. Presence of HPV infection was also significantly associated with p16 overexpression, in combination with p53 negativity. The findings indicate that p16 overexpression combined with a negative p53 expression can be used for HPV detection and the former alone may be used as diagnostic marker in OPSCC only. Conclusion: HPV-associated OSCC and OPSCC are a unique subset of cancers, and using combination of molecular biomarkers could help in diagnosis and prognosis.

10.
Indian J Med Microbiol ; 46: 100479, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37801965

RESUMEN

We conducted a retrospective study to evaluate the burden of tuberculosis and rifampicin resistance in patients with pleural effusion in Bhubaneswar, Odisha, during February 2016, to December 2022, using cartridge-based nucleic acid amplification test (CBNAAT, Xpert MTB/RIF). Of the 1370 pleural fluid samples tested at the National Reference Laboratory for tuberculosis, 3.8% (52/1370) were positive for M.tuberculosis. Rifampicin resistance was detected in 3.8% (2/52) samples. The positivity was 5% in 2016, increased to 7.5% in 2020, and was 4.4% in 2022. The positivity varied across age groups, ranging from 1.5% in patients aged >60 years to 6.1% in 15-30 years.


Asunto(s)
Antibióticos Antituberculosos , Mycobacterium tuberculosis , Tuberculosis Pleural , Humanos , Rifampin/farmacología , Rifampin/uso terapéutico , Tuberculosis Pleural/epidemiología , Tuberculosis Pleural/tratamiento farmacológico , Estudios Retrospectivos , Sensibilidad y Especificidad , Mycobacterium tuberculosis/genética
11.
J Infect Dev Ctries ; 17(9): 1255-1261, 2023 09 30.
Artículo en Inglés | MEDLINE | ID: mdl-37824363

RESUMEN

INTRODUCTION: Personnel involved in essential services or residing in high-risk areas during the COVID-19 pandemic are at increased risk of getting infected. We evaluated the proportion of personnel infected in several high-risk groups in Odisha using seroprevalence studies. METHODOLOGY: During July to November, 2020, individuals from multiple high-risk groups in 6 urban cities (Bhubaneswar, Berhampur, Cuttack, Malkangiri, Paralakhemundi, and Rourkela) in Odisha, India, were recruited to the study after obtaining written informed consent. Blood samples collected from the study participants were tested for IgG antibodies against COVID-19 in Roche Cobas e441 (Roche Diagnostics, Rotkreuz, Switzerland). Information on socio-demographic variables, association with a confirmed or suspected case, and other details were collected using an electronic data capture tool and analysed with a statistical software. RESULTS: The overall COVID-19 seroprevalence was 34.9% (95%CI 33.6-36.2) among the 5434 individuals. The seroprevalence varied from 21.8% (95% CI, 19.6-24.1) in Rourkela to 54.9% (95% CI, 51.5-58.2) in Bhubaneswar. Seropositivity was maximum among prisoners (47.7%), followed by municipality/ sanitation staff (43.5%), and other office going staff (40.8%). Multivariate logistic regression indicated that participants aged 18-29 years, 30-44 years, residents of slums and vending zone, municipality staff, prisoners, residents of urban cities Malkangiri, Cuttack, Paralakhemundi, Bhubaneswar and those with previous history of COVID-19 were independent co-relates of seropositivity. CONCLUSIONS: The risk of COVID-19 varied among the high-risk groups of Odisha. Periodic seroprevalence studies in future are essential to protect the high-risk personnel involved in frontline activities during the pandemic.


Asunto(s)
COVID-19 , Humanos , COVID-19/epidemiología , Ciudades/epidemiología , Pandemias , SARS-CoV-2 , Estudios Seroepidemiológicos , India/epidemiología , Anticuerpos Antivirales
12.
medRxiv ; 2023 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-37577511

RESUMEN

Induction of mycobacterial efflux pumps is a cause of Mycobacterium tuberculosis (Mtb) drug tolerance, a barrier to shortening antitubercular treatment. Verapamil inhibits Mtb efflux pumps that mediate tolerance to rifampin, a cornerstone of tuberculosis treatment. Verapamil's mycobacterial efflux pump inhibition also limits Mtb growth in macrophages in the absence of antibiotic treatment. These findings suggest that verapamil could be used as an adjunctive therapy for TB treatment shortening. However, verapamil is rapidly and substantially metabolized when co-administered with rifampin. We determined in a dose-escalation clinical trial that rifampin-induced clearance of verapamil can be countered without toxicity by the administration of larger than usual doses of verapamil. An oral dosage of 360 mg sustained-release (SR) verapamil given every 12 hours concomitantly with rifampin achieved median verapamil exposures of 903.1 ng.h/ml (AUC 0-12h), similar to those in persons receiving daily doses of 240 mg verapamil SR but not rifampin. Norverapamil:verapamil, R:S verapamil and R:S norverapamil AUC ratios were all significantly greater than those of historical controls receiving SR verapamil in the absence of rifampin, suggesting that rifampin administration favors the less-cardioactive verapamil metabolites and enantiomers. Finally, rifampin exposures were significantly greater after verapamil administration. Our findings suggest that a higher dosage of verapamil can be safely used as adjunctive treatment in rifampin-containing treatment regimens.

13.
Int J Disaster Risk Reduct ; 93: 103776, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37303828

RESUMEN

Introduction: Individual and community characteristics predictive of knowledge, perception, and attitude on COVID-19, specifically on gender, have not been adequately explored. Objective: To examine the gender differences in COVID-19 knowledge, self-risk perception and public stigma among the general community and to understand other socio-demographic factors which were predictive of them. Method: A nationally representative cross-sectional multi-centric survey was conducted among adult individuals(≥18 yrs) from the community member (N = 1978) from six states and one union territory of India between August 2020 to February 2021. The participants were selected using systematic random sampling. The data were collected telephonically using pilot-tested structured questionnaires and were analyzed using STATA. Gender-segregated multivariable analysis was conducted to identify statistically significant predictors (p < 0.05) of COVID-19-related knowledge, risk perception, and public stigma in the community. Results: Study identified significant differences between males and females in their self-risk perception (22.0% & 18.2% respectively) and stigmatizing attitude (55.3% & 47.1% respectively). Highly educated males and females had higher odds of having COVID-19 knowledge (aOR: 16.83: p < 0.05) than illiterates. Highly educated women had higher odds of having self-risk perception (aOR: 2.6; p < 0.05) but lower public stigma [aOR: 0.57; p < 0.05]. Male rural residents had lower odds of having self-risk perception and knowledge [aOR: 0.55; p < 0.05 & aOR: 0.72; p < 0.05] and female rural residents had higher odds of having public stigma [aOR: 1.36; p < 0.05]. Conclusion: Our study findings suggest the importance of considering thegender differentials and their background, education status and residential status in designing effective interventions to improve knowledge and reduce risk perception and stigma in the community about COVID-19.

14.
Indian J Med Microbiol ; 44: 100373, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37356845

RESUMEN

We conducted a retrospective analysis of the line probe assay (LPA) data during January to December 2019, from 8 districts of Odisha. The prevalence of Hr-TB (isoniazid resistance only) was 1.53% (50/3272) with a range of 0-3.4% in the 8 districts. Of the 50 Hr-TB strains, katG mutation and inhA mutations were seen in 74% (37/50) and 26% (13/50) strains respectively. S315T1 and C15T were common mutations in katG and inhA respectively. Since these mutations are closely related to high- or low degree resistance to INH, it has therapeutic implications.


Asunto(s)
Proteínas Bacterianas , Farmacorresistencia Bacteriana , Isoniazida , Mycobacterium tuberculosis , Mycobacterium tuberculosis/efectos de los fármacos , Mycobacterium tuberculosis/genética , Isoniazida/farmacología , Proteínas Bacterianas/genética , Mutación , India
15.
Pol J Microbiol ; 72(2): 209-214, 2023 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-37013928

RESUMEN

This study investigated the major pathogens in fever patients' blood in a rural cohort and characterized its virulence. A total of 718 blood samples received from IPD/OPD (inpatient department/outpatient department) patients with H/O (history of) fever were cultured, and 73 out of 83 culture-positive samples were identified as Staphylococcus aureus. The isolates showed higher resistance to penicillin, most being multidrug resistant. They formed biofilm in vitro, and 27.4% of the isolates were strong biofilm producers. They were sensitive towards linezolid, gentamicin, and tetracycline. The findings emphasize the necessity of preventing and managing staphylococcal infection and regular antimicrobial surveillance in rural areas.


Asunto(s)
Staphylococcus aureus Resistente a Meticilina , Infecciones Estafilocócicas , Humanos , Staphylococcus aureus , Antibacterianos/farmacología , Farmacorresistencia Bacteriana , Infecciones Estafilocócicas/epidemiología , Biopelículas , Pruebas de Sensibilidad Microbiana
16.
BMC Infect Dis ; 23(1): 87, 2023 Feb 09.
Artículo en Inglés | MEDLINE | ID: mdl-36759762

RESUMEN

BACKGROUND: Identification of SARS-CoV-2 positive patients with rapid and cost-effective test methods is the key for isolating infected individuals, interrupting the transmission chain, and thus, containment of the CoVID-19 disease. In this regard, Rapid Antigen Test (RAT) plays an important role at point of care testing but the low sensitivity attributing towards escape of positive cases is reported as a major disadvantage of RAT which led us to evaluate a RAT kit among symptomatic and asymptomatic individuals suspected of CoVID-19. METHODS: We analyzed 329 parallel nasopharyngeal swabs for RAT (Zydus Cadila, India) at the point of collection in a hospital-based facility and RealTime RT-PCR in the laboratory. The performance parameters were analyzed by evaluating the specificity, sensitivity, Negative Predictive Value (NPV), Positive Predictive Value (PPV), and Kappa coefficient. RESULTS: The sensitivity and specificity were found to be 75.17% and 98.89% respectively. Positive Predictive value was 98.25% and the negative predictive value was 82.79%. The accuracy between the two techniques was found to be 88.14% with a kappa coefficient of 0.756 (SE: 0.036 and CI at 95%: 0.686 to 0.826) with a good strength of agreement (0.61-0.80) between the two testing techniques. Among the false-negative cases, 22 (59.5%) were asymptomatic having the Cycle Threshold (Ct) range 27 to 32.9 including 12 cases with a history of close contact with the known positive cases (i.e. household contact). The remaining 15 cases (40.5%) were symptomatic having low to moderate Ct values. CONCLUSION: It is observed from the results that the false negative result for symptomatic individuals is a matter of concern as it was noted in 4 cases of our study subjects who required hospitalisation later. Also the positives among asymptomatic contacts are important from epidemiological point of view for isolation and curtailing the infection from spreading in a community. These results support the fact that RAT showing sensitivity below 80% can be used for mass screening purposes with provision for additional testing in case of false negative with symptomatic individuals. Also false-negative results should be interpreted cautiously considering the epidemiological link as well as the clinical condition of the patients.


Asunto(s)
COVID-19 , Humanos , COVID-19/diagnóstico , SARS-CoV-2/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Prueba de COVID-19 , Prueba Serológica para COVID-19 , Sensibilidad y Especificidad
17.
Front Public Health ; 10: 992046, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36311615

RESUMEN

Objective: To assess factors associated with COVID-19 stigmatizing attitudes in the community and stigma experiences of COVID-19 recovered individuals during first wave of COVID-19 pandemic in India. Methods: A cross-sectional study was conducted in 18 districts located in 7 States in India during September 2020 to January 2021 among adults > 18 years of age selected through systematic random sampling. Data on socio demographic and COVID-19 knowledge were collected from 303 COVID-19 recovered and 1,976 non-COVID-19 infected individuals from community using a survey questionnaire. Stigma was assessed using COVID-19 Stigma Scale and Community COVID-19 Stigma Scale developed for the study. Informed consent was sought from the participants. Univariate and multivariate binary logistic regression analysis were conducted. Results: Half of the participants (51.3%) from the community reported prevalence of severe stigmatizing attitudes toward COVID-19 infected while 38.6% of COVID-19 recovered participants reported experiencing severe stigma. Participants from the community were more likely to report stigmatizing attitudes toward COVID-19 infected if they were residents of high prevalent COVID-19 zone (AOR: 1.5; CI: 1.2-1.9), staying in rural areas (AOR: 1.5; CI:1.1-1.9), belonged to the age group of 18-30 years (AOR: 1.6; CI 1.2-2.0), were male (AOR: 1.6; CI: 1.3-1.9), illiterate (AOR: 2.7; CI: 1.8-4.2), or living in Maharashtra (AOR: 7.4; CI: 4.8-11.3). COVID-19 recovered participants had higher odds of experiencing stigma if they had poor knowledge about COVID-19 transmission (AOR: 2.8; CI: 1.3-6.3), were staying for 6-15 years (AOR: 3.24; CI: 1.1-9.4) in the current place of residence or belonged to Delhi (AOR: 5.3; CI: 1.04-26.7). Conclusion: Findings indicated presence of stigmatizing attitudes in the community as well as experienced stigma among COVID-19 recovered across selected study sites in India during the first wave of COVID-19 pandemic. Study recommends timely dissemination of factual information to populations vulnerable to misinformation and psychosocial interventions for individuals affected by stigma.


Asunto(s)
COVID-19 , Pandemias , Adulto , Masculino , Humanos , Adolescente , Adulto Joven , Femenino , Estudios Transversales , COVID-19/epidemiología , India/epidemiología , Estigma Social
18.
Indian J Med Res ; 155(1): 156-164, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-35859441

RESUMEN

Background & objectives: COVID-19 pandemic has triggered social stigma towards individuals affected and their families. This study describes the process undertaken for the development and validation of scales to assess stigmatizing attitudes and experiences among COVID-19 and non-COVID-19 participants from the community. Methods: COVID-19 Stigma Scale and Community COVID-19 Stigma Scale constituting 13 and six items, respectively, were developed based on review of literature and news reports, expert committee evaluation and participants' interviews through telephone for a multicentric study in India. For content validity, 61 (30 COVID-19-recovered and 31 non-COVID-19 participants from the community) were recruited. Test-retest reliability of the scales was assessed among 99 participants (41 COVID-19 recovered and 58 non-COVID-19). Participants were administered the scale at two-time points after a gap of 7-12 days. Cronbach's alpha, overall percentage agreement and kappa statistics were used to assess internal consistency and test-retest reliability. Results: Items in the scales were relevant and comprehensible. Both the scales had Cronbach's α above 0.6 indicating moderate-to-good internal consistency. Test-retest reliability assessed using kappa statistics indicated that for the COVID-19 Stigma Scale, seven items had a moderate agreement (0.4-0.6). For the Community COVID-19 Stigma Scale, four items had a moderate agreement. Interpretation & conclusions: Validity and reliability of the two stigma scales indicated that the scales were comprehensible and had moderate internal consistency. These scales could be used to assess COVID-19 stigma and help in the development of appropriate stigma reduction interventions for COVID-19 infected, and mitigation of stigmatizing attitudes in the community.


Asunto(s)
COVID-19 , Estigma Social , Humanos , India/epidemiología , Pandemias , Psicometría , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
20.
J Neurovirol ; 28(3): 464-466, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35796862

RESUMEN

Epstein-Barr Virus also known as Human herpesvirus 4 usually causes infectious mononucleosis which is a benign disease with mild or no symptoms. Death due to Epstein-Barr Virus infections is extremely rare. We present a case of fulminant Epstein-Barr Virus encephalitis who developed multiorgan dysfunction on second day and succumbed within 52 h of symptom onset.


Asunto(s)
Encefalitis , Infecciones por Virus de Epstein-Barr , Infecciones por Virus de Epstein-Barr/complicaciones , Herpesvirus Humano 4 , Humanos
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