when did the hepatitis b vaccine come out
Hepatitis B vaccine The first hepatitis B vaccine was approved in the United States in 1981.[3] A recombinant version came to market in 1986.[1] It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.[4] As of 2014, the wholesale cost in the developing world is US$0.58–13.20 per dose.[5] In the United States it costs US$50–100.[6]
Polio vaccine The first polio vaccine was the inactivated polio vaccine.[1] It was developed by Jonas Salk and came into use in 1955.[1][5] The oral polio vaccine was developed by Albert Sabin and came into commercial use in 1961.[1][6] They are on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.[7] The wholesale cost in the developing world is about US$0.25 per dose for the oral form as of 2014.[8] In the United States it costs between $25â€“50 for the inactivated form.[9]