health
PanChol booster study finds antibody seroconversion in 15 of 20 adults
In a phase 1a study of 20 healthy adults, 15 developed a fourfold rise in antibody titres against both cholera serotypes after a second PanChol dose. The preprint also reports reduced vaccine shedding after the booster, an indirect measure of intestinal immunity rather than a measure of protection from cholera illness.