One-shot chikungunya vaccine
Facts for Prelims (FFP) Source: IE Context: According to the first phase 3 trial of the preventive published in The Lancet journal – a single-dose vaccine (VLA1553 vaccine) for chikungunya was found safe and produced a strong immune response against the viral disease. About Chikungunya: The mosquito-borne disease is caused by the chikungunya virus …








