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Purification of Viral DNA for the Identification of Associated Viral and Cellular Proteins
Published on: August 31, 2017
Viral gastroenteritis
Krisztián Bányai1, Mary K Estes2, Vito Martella3
1Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary.
Insights
Rotavirus vaccines significantly reduce hospitalizations for gastroenteritis in children under five. Norovirus prevention focuses on hygiene and environmental disinfection, with vaccines still under development.
Area of Science:
- Virology
- Public Health
- Epidemiology
Background:
- Enteric viruses, especially rotaviruses and noroviruses, are major global causes of gastroenteritis.
- Rotaviruses disproportionately impact young children, causing significant mortality and hospitalizations, particularly in developing nations.
- Noroviruses are a primary cause of foodborne illness and outbreaks across all age groups.
Purpose of the Study:
- To review the impact of rotavirus vaccines on hospital admissions.
- To discuss current prevention strategies for norovirus infections.
- To highlight the status of norovirus vaccine development and treatment for viral gastroenteritis.
Main Methods:
- Analysis of data from rotavirus vaccine implementation in various countries.
- Review of established norovirus prevention measures.
- Summary of ongoing clinical trials for norovirus vaccines.
Main Results:
- Rotavirus vaccination led to a 49-89% decrease in rotavirus-associated hospital admissions and a 17-55% decline in all-cause gastroenteritis admissions in children under five within two years.
- Current norovirus control relies on hygiene and disinfection; vaccine efficacy against diverse strains is uncertain.
- Fluid and electrolyte replacement remains the primary treatment for viral gastroenteritis.
Conclusions:
- Rotavirus vaccines are highly effective in reducing childhood gastroenteritis hospitalizations.
- Effective norovirus vaccines are needed, and current prevention strategies must be maintained.
- Further research is required for durable norovirus vaccines and improved gastroenteritis management.
Abstract:
Enteric viruses, particularly rotaviruses and noroviruses, are a leading cause of gastroenteritis worldwide. Rotaviruses primarily affect young children, accounting for almost 40% of hospital admissions for diarrhoea and 200 000 deaths worldwide, with the majority of deaths occurring in developing countries. Two vaccines against rotavirus were licensed in 2006 and have been implemented in 95 countries as of April, 2018. Data from eight high-income and middle-income countries showed a 49-89% decline in rotavirus-associated hospital admissions and a 17-55% decline in all-cause gastroenteritis-associated hospital admissions among children younger than 5 years, within 2 years of vaccine introduction. Noroviruses affect people of all ages, and are a leading cause of foodborne disease and outbreaks of gastroenteritis worldwide. Prevention of norovirus infection relies on frequent hand hygiene, limiting contact with people who are infected with the virus, and disinfection of contaminated environmental surfaces. Norovirus vaccine candidates are in clinical trials; whether vaccines will provide durable protection against the range of genetically and antigenically diverse norovirus strains remains unknown. Treatment of viral gastroenteritis is based primarily on replacement of fluid and electrolytes.
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