Your son may have experienced redness, swelling, or soreness after these extra shots. But, children who get extra doses of any vaccine are, for the most part, at no extra risk than children who follow the regular schedule. All in all, the end result should only be more of a boost to his immune system.
In most cases, the side effects of receiving the same vaccine twice will be mild and will resolve on their own within a few days. However, if you experience more severe symptoms, such as difficulty breathing or swelling of the face or throat, seek medical attention immediately.
Is this harmful? Answer: Getting an extra dose of the routine childhood vaccines is not harmful. Extra doses are often given when a person's vaccination history is unknown.
The MMR vaccine is safe, and there is no harm in getting another dose if you may already be immune to measles, mumps, or rubella. If you received a measles vaccine in the 1960s, you may not need to be revaccinated.
Getting multiple vaccines at the same time has been shown to be safe. Scientific data show that getting several vaccines at the same time does not cause any chronic health problems.
If more than one injection is given in a single limb (arm or leg), separate the injections by a minimum of 1". The diagrams below illustrate options for administer- ing one, two, or three vaccinations in a single arm, spaced at least 1" apart. Additional injections can also be administered in the opposite arm.
Safety of vaccines. Your child will need many vaccines before the age of 2 years. Some of them need to be given in more than one dose. This means that your child could have up to five shots at one office visit.
Generally, getting extra doses of a vaccine does not increase your risk of serious side effects. However, with the pneumonia vaccine, you are more likely to get pain or tenderness at the injection site if the doses are given too closely together.
Most adults need only one dose of the MMR vaccine. However, two doses given 28 days apart are recommended for people who are at higher risk for measles, mumps, or rubella, including:3.
If the vaccination schedule is interrupted, vaccine doses do not need to be repeated (no maximum interval). Immunogenicity studies have shown that two doses of HPV vaccine given to 9–14-year-olds at least 6 months apart provided as good or better protection than three doses given to older adolescents or young adults.
Mixing vaccines may enhance the immune response, and it increases flexibility for when people need a booster dose but doses of the vaccine they first received are not available.
All vaccines trigger immunity, but how long it lasts depends on several factors. One of them is the rate at which a virus replicates, says Hai Tran, associate director of Cedars-Sinai's Pharmacy Services.
mRNA, which is the technology used in the Pfizer and Moderna vaccines, degrades in the body naturally after a few days, and the spike protein it creates only stays for a couple weeks [3]. If a severe side effect were to occur, like myocarditis, it would be during that time [6].
Doctors, nurses, and pharmacists regularly give children and adults multiple vaccines at the same time to help you: Vaccines work just as well and are just as safe if you get them alone or with other vaccines. If you get side effects, they are generally the same whether you get one vaccine or more than one.
If two live vaccines are not given on the same day, they need to be spaced at least 4 weeks apart. If both pneumococcal conjugate vaccine (PCV) and 23-valent pneumococcal polysaccharide vaccine (PPSV23) are indicated for a high-risk patient, these vaccines should not be given at the same visit.
There are two circumstances when a third dose of MMR is recommended. ACIP recommends that women of childbearing age who have received 2 doses of rubella-containing vaccine and have rubella serum IgG levels that are not clearly positive should receive 1 additional dose of MMR vaccine (maximum of 3 doses).
The CDC advises most adults born in 1957 or afterward who can't show that they've had all 3 diseases get an MMR vaccine, whether they had one as a child or not.
Administering the MMR Vaccine
The minimum age for both MMR vaccines and MMRV is 12 months of age. The typical age for the second dose of either vaccine is at 4 to 6 years of age. The maximum age for administration of MMRV is 12 years. It should not be administered to anyone 13 years of age or older.
The most common side effects are a sore, red or swollen arm. Rarely the arm swelling can be from the shoulder to the elbow. This usually occurs within 2 days of the vaccination and gets better over 4-5 days. Antibiotics are not needed to treat this local reaction.
Administering larger-than-recommended doses of any vaccine does not negate the need for subsequent recommended doses. If you've administered a pediatric dose or half dose of a vaccine in error, consider the dose invalid and repeat it. Giving less than a full dose might result in inadequate protection.
Study after study has shown that people who receive two different COVID-19 vaccines generate potent immune responses, with side effects no worse than those caused by standard regimens.
“There's just no way you're going get anywhere close to causing exhaustion or tolerance from getting vaccinated.” There is no evidence yet that this is true for COVID-19. In fact, recent evidence suggests that repeated vaccinations and natural infections broadens the immune response to COVID-19.
Is it harmful to have an extra dose of hepatitis A vaccine or to repeat the entire hepatitis A vaccine series? No, getting extra doses of hepatitis A vaccine is not harmful.
Is it harmful to have an extra dose of hepatitis B vaccine or to repeat the entire hepatitis B vaccine series? No, getting an extra dose of the hepatitis B vaccine is not harmful.