Vibrio cholerae CVD 103-HgR strain live antigen

Vibrio cholerae CVD 103-HgR strain live antigen is a component of Vaxchora, an oral vaccine for immunization against Vibrio cholerae serogroup O1. Cholera is an acute bacterial disease of the small intestine caused by Vibrio cholerae, which is gram-negative bacteria. Two serogroups of V. cholerae, O1 and O139, are causative agents of epidemic cholera. Serogroup O1 is responsible for the majority of cholera outbreaks. Cholera outbreaks remain a major global public health problem that mainly affects countries with limited access to clean water, poor hygiene, and proper sanitation; thus, effective vaccines to protect individuals against cholera disease are critical.

The FDA approved the cholera vaccine containing Vibrio cholerae CVD 103-HgR strain live antigen under the brand name Vaxchora in June 2016, making it the first vaccine indicated for cholera prevention to become available in the U.S. Vaxchora was later approved by the European Commission in April 2020. It is indicated for individuals aged two years and older.