Typhoid Vi polysaccharide vaccine is a vaccine that is administered intramuscularly. It is an active immunization for the prevention of typhoid fever caused by S typhi and is approved for use in persons two years of age or older. The vaccine contains the purified cell surface Vi polysaccharide extracted from Salmonella enterica serovar Typhi, S typhi Ty2 str...
Texas A&M University - CTRAL, College Station, Texas, United States
Stanford LPCH Vaccine Program, Stanford, California, United States
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