ABSTRACT
Introducción Durante el periodo inicial del confinamiento por la COVID-19 se tomaron una serie de medidas de restricción que modificaron el día a día de la población. En este estudio se buscó conocer el impacto de este periodo en la salud física y mental de niños y jóvenes con discapacidad originada en la infancia, y de sus familias, y describir los cambios que se produjeron en el acceso a la educación y a los servicios de salud. Material y métodos Se realizó un estudio analítico observacional y transversal. Los datos se obtuvieron mediante una encuesta electrónica a través de una plataforma online realizada por la Academia Europea de Discapacidad Infantil. La encuesta incluyó preguntas sobre cuatro bloques temáticos: características sociodemográficas y de salud, impacto del confinamiento en la salud y bienestar, acceso a la educación y a los servicios de salud. Resultados Se obtuvieron 145 respuestas. El 45,5% de los niños y jóvenes eran totalmente dependientes. Se percibió un impacto sobre su salud física (54,5%), mental (47,6%) y sobre ambas (32%), mayores niveles de estrés (68,3%) y problemas de sueño (41,4%), así como una sobrecarga muy elevada en el 84,8% de los progenitores, sobre todo en familias de niños con mayor nivel de dependencia (p<0,001). El 55% de los niños y jóvenes no recibieron ningún tratamiento durante este periodo, ni siquiera remoto. Conclusiones El confinamiento afectó en gran medida la salud física y mental, así como a los servicios recibidos por los niños y jóvenes con discapacidad y sus familias (AU)
Introduction During the initial period of COVID-19 lockdown, restriction measures modified the day-to-day life of the population. This study sought to know the impact of this period on the physical and mental health of children and young people with disabilities originating in childhood, and their families, and to describe the changes that occurred in access to education and health services. Material and methods An observational and cross-sectional analytical study was carried out. The data were obtained by means of an electronic survey through an online platform carried out by the European Academy of Childhood Disability. The survey included questions on four thematic blocks: sociodemographic and health characteristics, impact of lock down on health and well-being, and access to education and health services. Results One hundred and forty-five responses were obtained. 45.5% of the children and young people were totally dependent. There was an impact on their physical (54.5%), mental health (47.6%) and both (32%), higher levels of stress (68.3%), and sleep problems (41.4%), as well as a high burden in 84.8% of parents, especially in families of children with a higher level of dependency (P=.00). 55% of children and young people did not receive any treatment during this period, not even remotely. Conclusions COVID lock down period greatly affected physical and mental health, as well as the services for children and young people with disabilities and their families (AU)
Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Quarantine , Coronavirus Infections/prevention & control , Pneumonia, Viral/prevention & control , Pandemics , Child Health Services , Health Services for Persons with Disabilities , Cross-Sectional Studies , SpainSubject(s)
Coronavirus Infections , Coronavirus , Humans , Coronavirus Infections/prevention & control , ResearchABSTRACT
Porcine epidemic diarrhea virus (PEDV) mainly infects the intestinal epithelial cells of pigs, causing porcine epidemic diarrhea (PED). In particular, the virus causes severe diarrhea, dehydration, and death in neonatal piglets. Maternal immunity effectively protects neonatal piglets from PEDV infection; however, maternal antibodies can only prevent PEDV attachment and entry into target cells, but have no effects on intracellular viruses. Intracellular antibodies targeting virus-encoded proteins are effective in preventing viral infection. We previously identified four single chain variable fragments (scFvs), ZW1-16, ZW3-21, ZW1-41, and ZW4-16, which specifically targeted the PEDV N protein and significantly inhibited PEDV replication and up-regulated interferon-λ1 (IFN-λ1) expression in host cells. In our current study, the four scFvs were subcloned into replication-defective adenovirus vectors to generate recombinant adenoviruses rAdV-ZW1-16, rAdV-ZW3-21, rAdV-ZW1-41, and rAdV-ZW4-16. ScFvs were successfully expressed in Human Embryonic Kidney 293 (HEK293) cells and intestinal porcine epithelial cell line J2 (IPEC-J2) and were biosafe for piglets as indicated by body temperature and weight, scFv excretion in feces, IFN-γ and interleukin-4 (IL-4) expression in jejunum, and pathological changes in porcine tissue after oral administration. Western blotting, immunofluorescence, and immunohistochemical analyses showed that scFvs were expressed in porcine jejunum. The prophylactic effects of rAdV-ZW, a cocktail of the four rAdV-scFvs, on piglet diarrhea caused by PEDV was investigated. Clinical symptoms in piglets orally challenged with PEDV, following a two-time treatment with rAdV-ZW, were significantly reduced when compared with PEDV-infected piglets treated with phosphate buffered saline (PBS) or rAdV-wild-type. Also, no death and jejunal lesions were observed. ScFv co-localization with the PEDV N protein in vivo was also observed. Next, the expression of pro-inflammatory serum cytokines such as tumor necrosis factor-α (TNF-α), IL-6, IL-8, IL-12, and IFN-λ was assessed by enzyme-linked immunosorbent assay (ELISA), which showed that scFvs significantly suppressed PEDV-induced pro-inflammatory cytokine expression and restored PEDV-inhibited IFN-λ expression. Therefore, our study supported a promising role for intracellular scFvs targeting the PEDV N protein to prevent and treat diarrhea in PEDV-infected piglets.
Subject(s)
Coronavirus Infections , Porcine epidemic diarrhea virus , Single-Chain Antibodies , Virus Diseases , Animals , Humans , Swine , Single-Chain Antibodies/genetics , Single-Chain Antibodies/pharmacology , Nucleocapsid Proteins , HEK293 Cells , Coronavirus Infections/prevention & control , Coronavirus Infections/veterinary , Coronavirus Infections/drug therapy , Cytokines/pharmacology , Viral Proteins/pharmacology , Diarrhea/prevention & control , Diarrhea/veterinaryABSTRACT
The conserved coronavirus fusion peptide is a target of broadly neutralizing antibodies.
Subject(s)
Alphacoronavirus , Antibodies, Viral , Betacoronavirus , Broadly Neutralizing Antibodies , Peptides , Spike Glycoprotein, Coronavirus , Viral Fusion Proteins , Antibodies, Viral/chemistry , Antibodies, Viral/immunology , Broadly Neutralizing Antibodies/chemistry , Broadly Neutralizing Antibodies/immunology , Peptides/chemistry , Peptides/immunology , Spike Glycoprotein, Coronavirus/chemistry , Spike Glycoprotein, Coronavirus/immunology , Viral Fusion Proteins/chemistry , Viral Fusion Proteins/immunology , Neutralization Tests , Humans , Betacoronavirus/immunology , Alphacoronavirus/immunology , Antigen-Antibody Complex/chemistry , Coronavirus Infections/prevention & controlABSTRACT
BACKGROUND: Porcine epidemic diarrhea (PED), caused by PED virus (PEDV), is a severe enteric disease burdening the global swine industry in recent years. Especially, the mortality of PED in neonatal piglets approaches 100%. Maternal antibodies in milk, particularly immunoglobulin A (IgA) antibodies, are of great importance for protection neonatal suckling piglets against PEDV infection as passive lactogenic immunity. Therefore, appropriate detection methods are required for detecting PEDV IgA antibodies in milk. In the current study, we prepared monoclonal antibodies (mAbs) against PEDV spike (S) glycoprotein. An enzyme-linked immunosorbent assay (ELISA) was subsequently developed based on PEDV antigen capture by a specific anti-S mAb. RESULTS: The developed ELISA showed high sensitivity (the maximum dilution of milk samples up to 1:1280) and repeatability (coefficient of variation values < 10%) in detecting PEDV IgA antibody positive and negative milk samples. More importantly, the developed ELISA showed a high coincidence rate with a commercial ELISA kit for PEDV IgA antibody detection in clinical milk samples. CONCLUSIONS: The developed ELISA in the current study is applicable for PEDV IgA antibody detection in milk samples, which is beneficial for evaluating vaccination efficacies and neonate immune status against the virus.
Subject(s)
Coronavirus Infections , Porcine epidemic diarrhea virus , Swine Diseases , Animals , Swine , Milk , Antibodies, Viral , Antigens, Viral , Coronavirus Infections/diagnosis , Coronavirus Infections/veterinary , Coronavirus Infections/prevention & control , Enzyme-Linked Immunosorbent Assay/veterinary , Enzyme-Linked Immunosorbent Assay/methods , Antibodies, Monoclonal , Immunoglobulin AABSTRACT
BACKGROUND: Porcine epidemic diarrhea virus (PEDV) variant strains cause great economic losses to the global swine industry. However, vaccines do not provide sufficient protection against currently circulating strains due to viral mutations. This study traced the molecular characteristics of the most recent isolates in China and aimed to provide a basis for the prevention and treatment of PEDV. METHODS: We obtained samples from a Chinese diarrheal swine farm in 2022. Reverse transcription polymerase chain reaction and immunofluorescence were used to determine the etiology, and the full-length PEDV genome was sequenced. Nucleotide similarity was calculated using MEGA to construct a phylogenetic tree and DNASTAR. Mutant amino acids were aligned using DNAMAN and modeled by SWISS-MODEL, Phyre2 and FirstGlance in JMOL for protein tertiary structure simulation. Additionally, TMHMM was used for protein function prediction. RESULTS: A PEDV virulent strain CH/HLJJS/2022 was successfully isolated in China. A genome-wide based phylogenetic analysis suggests that it belongs to the GII subtype, and 96.1-98.9% homology existed in the whole genomes of other strains. For the first time, simultaneous mutations of four amino acids were found in the highly conserved membrane (M) and nucleocapsid (N) proteins, as well as eight amino acid mutations that differed from the vast majority of strains in the spike (S) protein. Three of the mutations alter the S-protein spatial structure. In addition, typing markers exist during strain evolution, but isolates are using the fusion of specific amino acids from multiple variant strains to add additional features, as also demonstrated by protein alignments and 3D models of numerous subtype strains. CONCLUSION: The newly isolated prevalent strain CH/HLJJS/2022 belonged to the GII subtype, and thirteen mutations different from other strains were found, including mutations in the highly conserved m and N proteins, and in the S1° and COE neutralizing epitopes of the S protein. PEDV is breaking through original cognitions and moving on a more complex path. Surveillance for PEDV now and in the future and improvements derived from mutant strain vaccines are highly warranted.
Subject(s)
Coronavirus Infections , Porcine epidemic diarrhea virus , Swine Diseases , Viral Vaccines , Swine , Animals , Phylogeny , Mutation , Viral Vaccines/genetics , Amino Acids/genetics , China/epidemiology , Coronavirus Infections/diagnosis , Coronavirus Infections/prevention & control , Coronavirus Infections/veterinary , Swine Diseases/epidemiologyABSTRACT
BACKGROUND: Porcine epidemic diarrhea virus (PEDV) variant strains cause great economic losses to the global swine industry. However, vaccines do not provide sufficient protection against currently circulating strains due to viral mutations. This study traced the molecular characteristics of the most recent isolates in China and aimed to provide a basis for the prevention and treatment of PEDV. METHODS: We obtained samples from a Chinese diarrheal swine farm in 2022. Reverse transcription polymerase chain reaction and immunofluorescence were used to determine the etiology, and the full-length PEDV genome was sequenced. Nucleotide similarity was calculated using MEGA to construct a phylogenetic tree and DNASTAR. Mutant amino acids were aligned using DNAMAN and modeled by SWISS-MODEL, Phyre2 and FirstGlance in JMOL for protein tertiary structure simulation. Additionally, TMHMM was used for protein function prediction. RESULTS: A PEDV virulent strain CH/HLJJS/2022 was successfully isolated in China. A genome-wide based phylogenetic analysis suggests that it belongs to the GII subtype, and 96.1-98.9% homology existed in the whole genomes of other strains. For the first time, simultaneous mutations of four amino acids were found in the highly conserved membrane (M) and nucleocapsid (N) proteins, as well as eight amino acid mutations that differed from the vast majority of strains in the spike (S) protein. Three of the mutations alter the S-protein spatial structure. In addition, typing markers exist during strain evolution, but isolates are using the fusion of specific amino acids from multiple variant strains to add additional features, as also demonstrated by protein alignments and 3D models of numerous subtype strains. CONCLUSION: The newly isolated prevalent strain CH/HLJJS/2022 belonged to the GII subtype, and thirteen mutations different from other strains were found, including mutations in the highly conserved m and N proteins, and in the S1° and COE neutralizing epitopes of the S protein. PEDV is breaking through original cognitions and moving on a more complex path. Surveillance for PEDV now and in the future and improvements derived from mutant strain vaccines are highly warranted.
Subject(s)
Coronavirus Infections , Porcine epidemic diarrhea virus , Swine Diseases , Viral Vaccines , Swine , Animals , Phylogeny , Mutation , Viral Vaccines/genetics , Amino Acids/genetics , China/epidemiology , Coronavirus Infections/diagnosis , Coronavirus Infections/prevention & control , Coronavirus Infections/veterinary , Swine Diseases/epidemiologyABSTRACT
Infectious bronchitis (IB) is a highly contagious viral disease of chickens caused by IB virus (IBV) that can cause substantial economic losses in the poultry industry. IBV variant infections have been continuously reported since the initial description in the 1930s. QX-like IBVs are the predominant circulating genotype globally. A homologous QX vaccine has superior protection efficacy compared with that of other available vaccines, and the combination of Massachusetts (Mass)-like and QX-like strains is being used to combat QX-like IBV infections. Inoculation of embryonated chicken eggs is the standard method for the titration of IBV, and the titer is expressed as 50% egg infectious dose (EID50). However, this method cannot effectively distinguish or quantify different genotypic strains in a mixture of different viruses, especially in the absence of neutralizing monoclonal antibodies. In this study, quantitative real-time PCR (RT-qPCR) was applied using specific primers for the QX- and Mass-like strains to quantitate IBV infection and for comparison with the conventional virus titration quantitative method. A strong positive correlation was observed between RT-qPCR cycle threshold values and the different EID50 concentrations. This method was further used to titrate bivalent IB vaccines, and the amount of individual genotype virus was determined based on specific primers. Thus, this RT-qPCR assay may be used as a highly specific, sensitive, and rapid alternative to the EID50 assay for titering IBVs.
Subject(s)
Bronchitis , Coronavirus Infections , Infectious bronchitis virus , Poultry Diseases , Viral Vaccines , Animals , Chickens , Vaccines, Combined , Real-Time Polymerase Chain Reaction , Vaccines, Attenuated , Coronavirus Infections/diagnosis , Coronavirus Infections/prevention & control , Coronavirus Infections/veterinary , Poultry Diseases/diagnosis , Poultry Diseases/prevention & control , Antibodies, Neutralizing , Infectious bronchitis virus/geneticsABSTRACT
Objetivos: detección, notificación y seguimiento de sospechas de reacciones adversas (RA) tras la administración de la primera dosis de la vacuna frente a la COVID-19 en usuarios de las farmacias comunitarias y su repercusión sobre la salud y vida diaria. Métodos: diseño: observacional prospectivo. Sujetos: personas vacunadas frente a la COVID-19, mayores de edad, que firmaron el consentimiento informado. Variables: número y porcentaje de participantes que presentaban al menos una RA. Número, tipo y frecuencia de posible reactividad. Repercusión en su vida diaria. El estudio fue aprobado por el CEIm-G (Exp. 2021-007).Resultados: colaboraron 10 farmacias de Pontevedra y 2 de Ourense. 781 casos, 488 (62,5 %) mujeres. Edad 56,8 (DE=17,9) años. 389 (49,8 %) en grupo de riesgo.495 (63,4 %) vacunados, 321 mujeres (65,8 %) y 174 (59,4 %) hombres refirieron al menos una RA: 236 (53,0 %) frente a Comirnaty®, 157 (82,6 %) a Vaxzevria®, 69 (66,3 %) a Spikevax® y 33 (80,5) a Janssen®.Se registraron 1.367 RA, 1,8 por persona vacunada. Las más prevalentes (el % es sobre el total de pacientes): dolor en punto de inyección 375 (48,0 %), cansancio/fatiga 170 (21,8 %), escalofríos 118 (15,1 %), cefalea 117 (15,0 %), dolor muscular 112 (14,3 %) y fiebre 98 (12,5 %). De los 495 encuestados con RA, necesitaron ayuda profesional 77 (15,6 %): del médico de familia 30 (39,0 %), 9 (11,7 %) en servicio de urgencias, 1 (1,3 %) en hospital y 37 (48,1 %) en la farmacia. A 118 (15,1 %) les impidió desarrollar su actividad diaria.Se comunicaron las RA que refirieron 264 vacunados (53,3 %).Conclusiones: el número de vacunados que manifestaron haber sufrido RA fue alto. Dolor en el punto de inyección fue la RA más prevalente. La mitad fueron atendidos en la farmacia. Aunque fueron en general leves, afectaron notablemente a su vida diaria. (AU)
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Community Pharmacy Services , Viral Vaccines/administration & dosage , Coronavirus Infections/prevention & control , Pneumonia, Viral/prevention & control , Pandemics/prevention & control , Pharmacovigilance , Prospective Studies , Interviews as Topic , Viral Vaccines/adverse effectsABSTRACT
Since the emergence of the highly pathogenic porcine epidemic diarrhea virus (PEDV) strain in 2010, the prevention of porcine epidemic diarrhea (PED) in pig farms remains problematic. To find the reasons behind the high mortality in young piglets, the relative mRNA expression of inflammation-related factors in infected pigs of different ages as well as uninfected pigs were detected by RT-qPCR. The results showed that the mRNA expression of these factors including IL-6 and TNF-α was more increased in infected younger piglets than infected older pigs. To clarify the relationship between these inflammation related factors, the pairwise linear correlation between the relative expression of these factors were analyzed and showed as network mapping with different correlation coefficients. A strong positive correlation was observed between the expression of various factors in 1-week-old piglets. Combined with the difference in mortality of PEDV infection in pigs of different ages, we hypothesized that lactic acid bacteria (LAB) could inhibit PEDV infection in newborn piglets, and an in vivo experiment was carried out. The results of survival rate and wet/dry ratio showed that LAB alleviated PEDV indued mortality and diarrhea. The detection of viral copies and tissue section staining showed less observed viruses in LAB treated pig. RT-qPCR results of gene expression in intestines showed that LAB modulated the gene expression of various host barrier genes, indicating that LAB is potential to inhibit PEDV infection by regulating the host intestinal barrier. However, to use LAB as therapy, how to improve the efficiency on inhibiting PEDV infection needs further studies.
Subject(s)
Coronavirus Infections , Lactobacillales , Porcine epidemic diarrhea virus , Swine Diseases , Swine , Animals , Porcine epidemic diarrhea virus/genetics , Lactobacillales/genetics , Diarrhea/prevention & control , Diarrhea/veterinary , Diarrhea/pathology , RNA, Messenger , Inflammation , Administration, Oral , Coronavirus Infections/prevention & control , Coronavirus Infections/veterinary , Coronavirus Infections/pathologyABSTRACT
Objetivo: Valorar el impacto económico de la implantación del Plan de Choque en Dependencia (PCD), que representa la primera respuesta del gobierno de España ante las significativas carencias que la pandemia de COVID-19 puso de manifiesto en los Servicios de Dependencia. El PCD establece como prioridades la eliminación de las listas de espera, la mejora de los servicios priorizando la atención en domicilio, y la profesionalización y la estabilización del empleo en el sector. Método: Para cumplir este objetivo se ha realizado una estimación del incremento de demanda de prestaciones y servicios en 2023, suponiendo que se cumplen las actuaciones que el PCD establece como inmediatas en el momento de su firma en 2021, para después, mediante una modelización multisectorial, cuantificar el impacto de las inversiones públicas requeridas, analizando no solo el impacto económico directo en los sectores económicos implicados en la dependencia, sino también los impactos indirectos e inducidos sobre la economía en su conjunto. Resultados: Los requerimientos de inversión pública para el año 2023 serán de 13.962 millones de euros, cifra cercana al 1% del producto interior bruto, con un impacto en la economía en términos de producción de 41.570 millones, un valor añadido bruto de 21.046 millones y la creación de unos 440.000 empleos. Conclusiones: Se pone de manifiesto que cumplir el PCD requiere un aumento del compromiso de financiación pública, más allá de las inyecciones puntuales del Plan de Recuperación, Transformación y Resiliencia. Estas inversiones tienen un impacto económico positivo en el conjunto de la economía del país, y no solo en el sector de servicios sociales. (AU)
Objective: To assess the impact on the economy of the implementation of the Action Plan on Dependency (APD), devised by the Spanish government as a first measure to tackle the major shortages in Dependency Services brought to light pursuant to COVID-19 pandemic. The APD establishes as priority areas the suppression of waiting lists, the improvement of dependency services, with a focus on home-care, and the professionalization and stabilization of employment. Method: To achieve this goal, first, an estimate of the increased demand for benefits and services in 2023 has been carried out, supposing that all the priority measures established in the PCD in 2021 are fully implemented. Then, the impact of investment on the economy has been measured using multisector modeling. This analysis considers not only the direct economic impact on the sectors providing services to dependent population, but also the indirect and induced impact on the economy as a whole. Results: The total public investment required for the plan in 2023 will reach 13,962 million Euro, which represents around 1% of the GDP. The impact on the economy in terms of production is expected to reach 41,570 million, while the impact on gross value added will be 21,046 million, together with the creation of nearly 440,000 jobs. Conclusions: The results reveal that, for the APD to be fully implemented, public funding needs to be increased way beyond the occasional allocation of funds established in the Recovery, Transformation and Resilience Plan. These investments have a positive impact not only on the social and welfare sector, but also on the country's economy. (AU)