An opponent is your competition, whether it's a rival hockey team, or the other finalist in the chess tournament. Coaches tell you to never underestimate your opponent. Someone who competes or fights against you is your opponent. If you're arguing that chocolate ice cream is better than vanilla, the vanilla ice cream fan is your opponent. An opponent can also be someone who opposes, like an opponent of gun control laws.
Your child must get the first dose of rotavirus vaccine before 15 weeks of age, and the last by age 8 months. Rotavirus vaccine may safely be given at the same time as other vaccines. Almost all babies who get rotavirus vaccine will be protected from severe rotavirus diarrhea.
The primary target group in most of the countries recommending HPV vaccination is young adolescent girls, aged 9-14. For both HPV vaccines, the vaccination schedule depends on the age of the vaccine recipient. Females <15 years at the time of first dose: a 2-dose schedule (0, 6 months) is recommended. If the interval between doses is shorter than 5 months, then a third dose should be given at least 6 months after the first dose.