How the Flu Virus Changes
Find out what researchers are learning about why and how the flu virus mutates and how we might be able to keep one step ahead.
A diet poor in the nutrient selenium causes mutations to occur in the influenza virus, making it more dangerous.
An animated look at the two ways in which the flu virus changes
The precise mechanism by which viral genes are assembled and packaged into a new virus particle (called a virion) has long been a matter of debate.
The flu virus' genetic material, prone to mutations, is forever trying out new combinations to outwit a person's antibodies. Yet with all the changes going on, why are there so few strains circulating from year to year?
A comparison of the age-old method of making a flu vaccine with a new, more efficient technique.
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