The main shot you get at 16 is a meningococcal booster (MenACWY), which is the one vaccine specifically scheduled for the 16-year-old checkup. You may also need catch-up doses of other vaccines if you missed them earlier, plus your annual flu shot. Here’s what to expect and why each one matters.
The Meningococcal Booster: The Big One at 16
The meningococcal conjugate vaccine (MenACWY) booster is the centerpiece of the 16-year-old visit. Most teens got their first dose at age 11 or 12, and the second dose at 16 is essential because protection from the first shot fades over time. The booster restores that protection right when teens need it most.
The timing is deliberate. Meningococcal disease, a serious bacterial infection that can cause meningitis and blood infections, spikes among older teens and young adults. College freshmen living in dorms face roughly two to three times the risk of meningococcal disease compared to non-students of the same age, largely because of crowded living conditions and close contact with people from many different geographic areas. Getting the booster at 16 means strong protection is in place before that transition.
One important detail: if you got your first MenACWY dose at age 16 or later (rather than at 11 or 12), you don’t need a booster. That single dose counts. But if the first dose was given between ages 13 and 15, a booster is recommended between 16 and 18.
Catch-Up Vaccines You Might Also Need
Tdap (Tetanus, Diphtheria, Pertussis)
A Tdap shot is normally given at age 11 or 12. If you got it then, you’re all set at 16. If you missed it, your doctor will likely give it at this visit as a catch-up dose. Many states require proof of Tdap vaccination for school attendance starting in 7th grade, so most teens have already received it by 16.
HPV Vaccine
The HPV vaccine protects against the strains of human papillomavirus most likely to cause cervical, throat, and other cancers later in life. It’s ideally started at age 11 or 12, but if you haven’t gotten it yet, 16 is not too late. The dosing schedule changes depending on when you start: if you begin before age 15, you need two shots spread over six to twelve months. Starting at 15 or older, the series requires three shots over about six months, with minimum gaps of four weeks between the first and second dose and twelve weeks between the second and third.
COVID-19 Vaccine
An updated COVID-19 vaccine is also on the recommended schedule for teens, with specific timing that depends on your previous vaccination history. Your doctor can tell you whether you’re due for a dose.
The Annual Flu Shot
A yearly flu vaccine is recommended for everyone 6 months and older, so it applies at 16 as well. It’s not unique to this age, but your doctor may offer it during the same visit. The best time to get it is before the end of October, though getting vaccinated later in the season still provides meaningful protection.
Meningococcal B: Not Routine, but Worth Discussing
In addition to the MenACWY booster, there’s a separate vaccine that covers a different strain of meningococcal bacteria called serogroup B. This one (MenB) isn’t a standard recommendation for all 16-year-olds. Instead, it falls under what’s called shared clinical decision-making, meaning you and your doctor can decide together whether it makes sense based on your risk factors and plans. Teens heading to college, especially those planning to live in dorms, often choose to get it.
The MenB vaccine is a two- or three-dose series given between ages 16 and 23, with 16 through 18 being the preferred window. It’s worth bringing up at your appointment if your doctor doesn’t mention it first.
What Side Effects to Expect
The MenACWY booster, which is the most common shot at this visit, tends to cause mild side effects: soreness at the injection site, muscle pain, headache, or tiredness. These typically resolve within one to two days.
If you also get the MenB vaccine, side effects can be a bit more noticeable. Along with soreness and fatigue, some people experience fever, chills, nausea, or joint pain. These symptoms generally last three to five days, which is longer than what most people experience with MenACWY. Taking an over-the-counter pain reliever and keeping the arm moving can help with soreness.
School Requirements to Keep in Mind
Many states require proof of the meningococcal booster for entry into 12th grade. Pennsylvania, for example, requires one dose of the meningococcal conjugate vaccine on the first day of 12th grade, and a dose given at age 16 or older satisfies this requirement. Requirements vary by state, but the meningococcal booster is one of the most commonly mandated vaccines for upperclassmen. Your school’s health office or your state health department website can confirm exactly what’s required where you live.
If you’re heading to college, most universities require documentation of the MenACWY booster (and sometimes MenB) before move-in. Getting these shots at 16 keeps you well ahead of any enrollment deadlines.