POLIOMYELITIS

This study tests a new oral polio vaccine (nOPV3) in healthy young children, infants, and newborns in Panama. The goal is to see if it is safe and triggers a strong immune response compared to the current vaccine. About 1,500 participants will receive either the new or standard v…

This study compares a single dose of a polio vaccine (sIPV) given to people aged 7 to 50 years with the standard three-dose vaccine given to infants. The goal is to see if one dose works as well in older age groups. About 180 healthy participants will be enrolled to check immune …

This study tests whether giving two new polio vaccines together is safe and works as well as giving them separately in healthy infants. Around 675 babies in Panama will receive either the combined vaccines or single vaccines. The goal is to find a simpler way to protect more chil…

This study tests a new oral polio vaccine (nOPV1) in over 2,200 healthy children, infants, and newborns in Bangladesh. The goal is to see if it is safe and triggers a strong immune response compared to the current vaccine. Researchers will monitor side effects and measure antibod…

This study looks at two different polio vaccines and two ways of giving them (under the skin or into the muscle) to find the safest and most effective option. About 480 healthy infants aged 2 months will take part. The goal is to see how well the vaccines protect against polio an…