Seasonal flu vaccines are formulated to protect against influenza viruses known to cause epidemics. Getting a flu vaccine can protect against these viruses as well as additional flu viruses that are antigenically similar to the viruses used to make the vaccine...
What is influenza (the flu)? The flu is a viral infection of the lungs and airways. The virus spreads through droplets in the air when someone with flu coughs or sneezes. You may also get the virus through close contact with someone who has the flu. For example, a person with the vir...
But Dr.Amesh Adalja,an infectious disease expert at Johns Hopkins Center for Health Security, warned influenza B can also be dangerous. “Influenza B can be severe as well, but influenza A is the dominant version of influenza infecting people right now.” The flu season feels worse than nor...
Influenza (flu) is a viral infection. People often use the term" flu" to describe any kind of mild illness, such as a cold or a stomach virus, that has symptoms like the flu. But the real flu is different. Flu symptoms are usually worse than a cold and last longer. The flu usually...
What is influenza (the flu)? The flu is a viral infection of the lungs and airways. The virus spreads through droplets in the air when someone with the flu coughs or sneezes. The virus also spreads through close contact with someone who has the flu. For example, a person with the virus...
Vaccine, Flu
1. B。根据文章第一段“What is bird flu?It’s a form of influenza believed to strike all birds. Though poultry(家禽) are believed to be especially prone to(倾向于)humans”就可推出bird flu不但可以感染禽类也可以传染人。故选B。 2. B。根据文章第二段第一句话“Thailand, Vietnam, Indonesia,...
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Avian Influenza (“Bird Flu”) Frequently Asked Questions What is avian influenza or “bird flu”? Like humans, birds have naturally occurring influenza (flu) viruses. There are many types of avian flu viruses that are carried by wild birds throughout the world, but these viruses do not ...
How to recognize flu, avoid getting it, and prevent spreading it. What is flu and what’s it to you? Influenza, flu for short, is a serious and contagious respiratory illness caused by the influenza virus. Flu mainly spreads via tiny droplets made through coughing, sneezing, or talking. ...