Neither, actually. The 26 year age recommendation is because that is the top of the age range it was tested for. The best thing is to be vaccinated before you are sexually active, and most people who are going to be active have begun by age 26. However, since there are many strains of HPV, it is recommend to be vaccinated even if you have become sexually active, and even if you have an HPV infection. The vaccination might provide some resistance to infection by another strain than the one you already have.
Chickenpox is much less prevalent in the US than it was before vaccination was approved. Since chickenpox vaccine was approved in 1995, chickenpox cases have decreased 90% from their previous level of about 4 million cases per year.
Pasteur did not discover chickenpox vaccine. However, death rates due to chickenpox have decreased over 90% in the US since chickenpox vaccine was approved.
I think that polio was virulent before 1955 when the vaccine was developed. Now, I think, since we have developed a vaccine, it isn't as virulent.
There is a higher incidence of autism among boys than girls. Since the new vaccine was approved, the incidence of the disease has decreased significantly.
Chickenpox has decreased significantly in the last 20 years in the US since chickenpox vaccine was approved in the US in 1995.
According to Alabama law, it is illegal to possess any animal for which there is no USDA approved rabies vaccine. Since there is no such vaccine approved for use on wolves, it is illegal to own a wolf in Alabama. (See related link for more information.)
If you're thirteen or older, you can get the second chickenpox vaccine as long as it's been at least 28 days since the last one. For patients under thirteen, they must wait three months minimum until the second vaccine.
The vaccine against measles was developed by two scientists named John Enders and Thomas Peebles in 1963. They isolated the measles virus and used it to create a live attenuated vaccine that has since been used globally to prevent measles infections.
Deaths and pneumonia have decreased as much as 90% since the start using the vaccine. That is surely one reason to get these each year.
The vaccine was first distributed just at the beginning of the 2009 flu season in the Northern Hemisphere. It is included in the regular seasonal flu vaccination again in the 2011-2012 flu season.
that was never shown on any show or move. but i would assume so since he bit many people before
Since only about 5% will have recurring outbreaks, it may not be worth getting the vaccine (unless you are one of the 5%).