Ty21a

Ty21a is a live attenuated (weakened) vaccine that helps protect against cholera, a serious bacterial illness causing severe diarrhea. It contains a weakened version of the cholera bacteria, which stimulates the immune system to recognize and fight the actual bacteria if encountered later. The vaccine is typically given in capsule form, usually taken over multiple days, and is recommended for travelers to areas where cholera is common. It does not cause the disease itself but prepares your immune system to respond effectively, reducing the risk of severe illness.