新感染该病毒的估计有270万人,同年有200万人死于艾滋病。
An estimated 2.7 million were newly infected with the virus and 2 million died of AIDS the same year.
他们已经发现相对于正常人群有更高比率的肥胖人群感染该病毒。
They had already found that a higher percentage of fat people had been infected with the virus than nonfat people.
如果高致病禽流感(HPAI或禽流感)病毒转移到了人类当中,那么感染该病毒的活禽可引发流感大流行。
Live birds infected with highly pathogenic avian influenza (HPAI, or bird flu) can infect humans.
You would first get exposed in children-- in childhood and then at a point when you're susceptible to the disease.
在儿童期这个较容易受病毒感染时期,第一次接触该病毒,就会引起发病
Right, but if you just got the primary exposure, wouldn't the secondary response automatically-- not a booster shot, just the secondary response, because you were exposed?
但这时你已经获得这样的初次免疫,而因为你已经天然感染过该病毒,那么,在没有加强针的情况下,二次免疫是否无法自动发生
应用推荐