Varicella (chickenpox) vaccine is commonly available under brand names such as Varivax and Varilrix, and it is usually given as a 2-dose series for good long-term protection. The first dose is typically given at 12-15 months of age (or later if not taken in childhood), and the second dose is given about 4-8 weeks after the first dose in older children, adolescents, or adults who were not previously vaccinated. Hepatitis A vaccine is available under names such as Havrix, Vaqta, and Avaxim, and it is also given as a 2-dose schedule. The second dose is usually given 6-12 months after the first dose (timing may vary slightly depending on the brand used). Both vaccines are generally safe and effective, and completing the full two doses is important to ensure strong and long-lasting protection. It is best to take these vaccines under a doctor's advice, especially if there are any existing health conditions or uncertainty about previous vaccination history.