The yellow fever vaccine is a live attenuated vaccine used to prevent yellow fever, a viral disease transmitted by mosquitoes. Here are some key points about the vaccine:
### 1. **Efficacy**
- The vaccine is highly effective, providing immunity in about 80-100% of recipients within 10 days of vaccination.
- Immunity typically lasts for at least 10 years, and a booster dose may be recommended for long-term protection.
### 2. **Who Should Get It**
- Recommended for travelers to endemic areas in Africa and South America.
- Required for entry into some countries, especially if traveling from a region where yellow fever is present.
### 3. **Administration**
- Administered as a single subcutaneous or intramuscular injection.
- Available at travel clinics and designated vaccination centers.
### 4. **Side Effects**
- Common side effects include mild fever, headache, and soreness at the injection site.
- Rare but serious side effects can include allergic reactions and vaccine-associated viscerotropic disease.
### 5. **Precautions**
- Not recommended for pregnant women, individuals with weakened immune systems, or those allergic to egg proteins.
### 6. **Certification**
- Vaccination is recorded on the International Certificate of Vaccination or Prophylaxis (ICVP), which may be needed for travel.
