pertussis (1914), diphtheria (1926), and tetanus (1938). These three vaccines were combined in 1948 and given as the DTP vaccine.
Vaccines are not perfect. They go thru variations. However, data shows that they are effective. Despite all of the fear tactics being thrown around.
My nieces husband just went thru a brutal bout with Covid (hospitalized). He is now saying that he wished he would have been vaccinated before that. (P.S. he was an avid mask wearer since he didn't want to get a vaccination).
News 
Market Data 
Discover 
