Yellow Fever Vaccine

About

The yellow fever vaccine is a live, attenuated vaccine used to prevent yellow fever, a viral disease transmitted by mosquitoes in Africa and South America. It is recommended for individuals aged 9 months and older traveling to or living in areas where yellow fever is endemic. The vaccine induces immunity by causing the body to produce antibodies against the virus, typically providing lifelong protection. It is administered subcutaneously and is available under brand names like YF-Vax and Stamaril. The vaccine is crucial for travelers to certain countries that require a yellow fever vaccination certificate for entry. While generally safe, it can cause mild side effects such as headaches and fever. Severe reactions are rare but can include allergic responses or neurological issues. The vaccine is not recommended for pregnant women unless necessary due to travel to epidemic areas, those with severe egg allergies, or individuals with weakened immune systems. It is essential for controlling outbreaks and is included in the WHO's List of Essential Medicines.