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In epidemiology, particularly in the discussion of infectious disease dynamics (mathematical modeling of disease spread), the infectious period is the time interval during which a host (individual or patient) is infectious, i.e. capable of directly or indirectly transmitting pathogenic infectious agents or pathogens to another susceptible host ...
Influenza A virus and influenza B virus circulate in humans and cause seasonal epidemics, and influenza C virus causes a mild infection, primarily in children. Influenza D virus can infect humans but is not known to cause illness. In humans, influenza viruses are primarily transmitted through respiratory droplets from coughing and sneezing.
Influenza vaccine, colloquially known as the flu shot [28] or the flu jab, [29] are vaccines that protect against infection by influenza viruses. [ 30 ] [ 31 ] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [ 30 ]
The best way to prevent the flu is by getting a flu shot, says Dr. Bhuyan. Anyone older than six months can get it. You should also wash your hands frequently with soap and water.
Even though getting a flu shot doesn’t take long, it’s one of those tasks it’s easy to put off … and put off … and put off. There are so many other needs begging for our attention and if ...
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The period from the time of infection to the time of becoming infectious is called the pre-infectious period or the latent period. During the pre-infectious or latent period, a host may or may not show symptoms (i.e. the incubation period may or may not be over), but in both cases, the host is not capable of infecting other hosts i.e ...
In short, there could be a time before showing symptoms that the person may be contagious, and usually the period of maximal infectiousness is in the three to five days after symptoms begin.
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