The flu vaccine is not a new vaccine that is developed from scratch every year. The flu virus mutates rapidly into different strains, meaning that a vaccination from a previous year will not protect you for another year's strain. The vaccine is modified to take account of this - it is not developed from scratch every time.
See the related question below for more details.
Years before Jonas Salk's work, Dr. Albert Sabin developed a polio vaccine using live virus. The Sabin vaccine was used for 18 years before the government recommended using the Salk vaccine, exclusively.
it doesn't
the h1n1 vaccine does not work all the time
because it does
Radioactivity was not developed, it has always existed. It was mostly the work of Madame Curie that paved the way for its use in many applications today. Unfortunately she died of radiation poison, though her work lives on.
because the immune system may not be strong enough to create antibodies also when a vaccine is used it could of weakened the immune system ...
Yes. They have found a vaccine that works 90 percent.
Dont No...
Most governments correctional policies have developed from the Victorian era's models of isolation and hard work gradually. Policies are announced and implemented, but always with reference to the existing system. This is one explanation of why most correctional systems do not work.
Most governments correctional policies have developed from the Victorian era's models of isolation and hard work gradually. Policies are announced and implemented, but always with reference to the existing system. This is one explanation of why most correctional systems do not work.
Yes, you can be suspended from work for not having chickenpox vaccine. Some jobs require proof of immunity to chickenpox. Talk with your attorney for information specific to your location.
The polio vaccine was tested using human trials to see if it would work and to see if it would cause any problems.