-
Immunization Schedule Begins
-
United States Public Service Act
The US Public Service act was passed in 1944 to provide license for biological products. This helped make vaccinations become a regulation for the US. In the later 1940's, smallpox vaccine was finally allowed to be used, starting at age 1 children. -
Inactive Poliovirus Vaccine
IPV was licensed and official on April 12th, created by Jonas Salk. It was very helpful by decreasing 80 to 90% of US worldwide paralytic polio. In a ten year time span, paralytic polio went down to 707 people, and non-paralytic went down to 125. -
Period: to
More Vaccines
OPV was licensed on August 24 to replace IPV more and more over the years. After IPV was wiped out in 1968,the measles vaccine was licensed and distributed in order to lessen the size of the measles epidemic (which it did, by a lot). By 1971, measles, mumps, and rubella were allowed to be combined in a vaccine for immunization. But a year later the smallpox vaccine was no longer used because of its new-found risk of infection. -
Measles/Mumps/Rubella Vaccine
The triple-dose vaccine was used worldwide by 1977 because of how well it worked. In the United States, it brought down the gigantic number of about 57 thousand people to 2,587. It wiped out the disease of measles almost 100 percent in a matter of 7 years! -
Period: to
Beneficial Results
The Hib vaccine was licensed in 1985 for children 18 months or older to decrease the thousands of annual child deaths and succeeding. Another vaccine was the hepatitis b vaccine for infants. Due to the polio vaccine, the Pan American Health Organization was the first to wipe of the disease. But a downside to this time in the 1900s was a measles outbreak from 1989 to 1991 due to the low vaccination rate, hurting thousands, some in death. -
Period: to
Safety
From 1991 to 2000, vaccine have been licensed, replaced, and taken away. IPV was actually brought back in 1996 because OPV has risk of wild poliovirus infection. Rates of disease have gone down over 80% due to the vaccines for them, such as chickenpox and pneumococcal. -
Recommended-
By 2005, vaccines were recommended for toddlers and younger, such as meningococcal and influenza. the next year HPV was licensed and recommended for preteens. As disease epidemics decreased, more vaccines were used to keep it that way.
