"When I give you a flu shot(注射)," Dr. Smith said, "I put a bit of flu virus(病毒) into your body. You build up antibodies(抗体)against this virus. But this vaccine won't protect you once the virus has changed. That's why you'll have to get a new one before the flu ...
Joe’s flu vaccine will be good for about six months to a year. His doctor explained why. “When I give a flu shot(注射), ” Dr. Smith said, “I put a bit of flu bacteria into your body. You build up antibodies(抗体) against this bacteria. But this vaccine won’t protect you ...
A hepatitis B vaccine derived from the plasma of carriers of hepatitis B virus has recently become generally available in the United States. Its use is recommended in groups considered to be at high risk of hepatitis B because of their exposure to potentially infectious blood, saliva, or semen...
The high cost and limited supply of hepatitis B vaccine means that its use should be restricted to those with the greatest attack rate, and to those individuals whose occupational risk is significantly greater than that of the general population. This approach must refer to specific situations whic...
Joe's flu vaccine will be good for about six months to a year.His doctor explained why."When I give you a flu shot(注射)," Dr.Smith said,"I put a bit of flu virus(病毒) into your body.You build up antibodies(抗体) against this virus.But this vaccine won't protect you once(一...
The hepatitis B vaccine was created in 1918, the first type of hepatitis vaccine created. The hepatitis A vaccine was developed in 1995. There is no vaccine for hepatitis C yet, but there are treatment options that recently became available....
Most doctors suggest the Tom,g vaccines: measles-mumps-rubella, hepatitis B and chicken pox. After these vuccines when you are The ing, you will be far away from most of these diseases all your life.ne. I's flu vaccine will be good for about six months to a year. His doctor ...
"When I give a flu shot(注射), "Dr. Smith said, "I put a bit of flu bacteria into your body. You build up antibodies(抗体) against this bacteria. But this vaccine won't protect you once (一旦) the bacteria has changed. That's why you will have to get a new one before the ...
There's no vaccine yet for hepatitis C, but there is one for hepatitis B. Get tested for viral hepatitis. Because it often doesn't cause symptoms, you can have it for years and not know it. If you're at high risk or if you think you've had contact with the virus, talk to your...
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