Vivotif Berna Vaccine

Typhoid vaccines are vaccines that prevent typhoid fever.[1][2] Several types are widely available: typhoid conjugate vaccine (TCV), Ty21a (a live oral vaccine) and Vi capsular polysaccharide vaccine (ViPS) (an injectable subunit vaccine). They are about 30 to 70% effective in the first two years, depending on the specific vaccine in question. The Vi-rEPA vaccine has been shown to be efficacious in children.[3] The World Health Organization (WHO... [wikipedia]