Bharat Biotech International Limited, a biotechnology company, engages in the research, development, and manufacture of vaccines and biotherapeutics. Its products include Revac-B+, a recombinant hepatitis-B vaccine; TYPBAR, a vi polysaccharide typhoid vaccine; BIOPOLIO, a poliomyelitis vaccine; INDIRAB, a rabies vaccine; Revac-Bmcf, a thiomersal free recombinant hepatitis-B vaccine; TEVAC, a tetanus vaccine; Scorgen, a scorpion venom anti-serum; and BioHib, a haemophilus influenza type b vaccine