The effect of sequential infections with variants of influenza virus on the nature of antibody response is that body creates specific antibodies to fight the disease during next encounter.
Influenza virus is commonly known as flu. It is caused in both humans and birds. It has the potential to affect nose, lungs and throat. They are transferred through infected airborne droplets. After suffering from flu, the body's immune system develops antibodies which effectively recognize and bind to antigenic sites which are found on virus proteins. When two flu viruses are antigenically different, this means that a host’s immune response (antibodies) elicited by infection or vaccination with one of the viruses will not as easily recognize and neutralize the other virus.
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