Sinovac Biotech Co., Ltd

This study tests a new mRNA vaccine designed to prevent shingles, a painful rash caused by the chickenpox virus. It involves 519 healthy adults aged 40 and older. The goal is to check the vaccine's safety and find the best dose to trigger a strong immune response.

This study tests two different polio vaccines in 480 infants to see which one works better and is safer. The vaccines are given either as a shot under the skin or into the muscle. The goal is to find the best way to protect babies from polio.

This study tests a new flu vaccine in 150 healthy pregnant women aged 18-39, between 20 and 32 weeks of pregnancy. Participants receive either the new vaccine or an existing one, and researchers check immune response and safety for both mother and baby. The goal is to see if the …

This study compares a single dose of a polio vaccine (sIPV) given to 180 healthy people aged 7-50 years with the standard three-dose vaccine given to infants. The goal is to see if the single dose works as well and is just as safe. Researchers will measure antibody levels 30 days…