Sinovac Biotech Co., Ltd

This study tests two types of inactivated polio vaccine (Sabin strain and wild strain) given in different orders to 480 infants aged 2 months. The goal is to see which sequence triggers the best immune response and causes the fewest side effects. Participants will receive three d…

This study is testing a new mRNA vaccine to prevent shingles (herpes zoster) in adults aged 40 and older. The vaccine uses mRNA technology, similar to some COVID-19 vaccines, and is freeze-dried for easier storage. Researchers will compare different doses against existing vaccine…

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 phase 4 study compares a single dose of an inactivated polio vaccine (sIPV) in people aged 7 to 50 years with the standard three-dose series given to infants. Researchers want to see if one shot can produce a similar immune response. The trial is recruiting 180 healthy parti…