Search Results | officials: deadly virus a 'threat' to public health
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West Nile Virus Overview
health.howstuffworks.com/diseases-conditions/infectious/west-nile-virus.htm
Ever since West Nile Virus arrived in the United States, it's been treated as a serious, growing threat. This virus, transmitted by mosquitoes, is potentially deadly -- but what are your chances of contracting it?
How Viruses Work
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Influenza, Ebola and COVID-19 are all viruses. Find out what a virus does to your body and how to decrease your chance of exposure.
Delta Variant and Unvaccinated Are Threats to Eliminating COVID-19
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The wildly contagious delta coronavirus variant now accounts for more than 80 percent of cases in the United States. Does it pose a threat to eliminating COVID-19 across the globe?
How Does Herd Immunity Keep a Country Safe From Diseases?
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Herd immunity relies on the principle of safety in numbers as far as vaccinations go. Find out why herd immunity is an important public health issue.
How Bird Flu Works
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Bird flu is an infectious disease that has swept through the Asian bird population. Learn how bird flu spreads and the risks posed by antigenic drift and shift.
How Biological and Chemical Warfare Works
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Chemical warfare and biological warfare is explained in this article. Learn about biological and chemical warfare.
10 Misconceptions About the Flu
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What are some misconceptions about the flu? Learn about 10 common misconceptions about the flu.
10 Ways That Doctors Treated Infections Before Antibiotics
Scientists are now taking a second look at treatments that were popular before the discovery of antibiotics. Learn all about them at HowStuffWorks.