Vaccines and immunizations Archive

Social media and apps about babies and children can fuel worries about a child's development. It's important to remember that every child is different and may move through stages of development at varying paces.

Another holiday season is here, and this year we need to contend with other viruses besides COVID-19. Three Harvard experts share their thoughts on the best ways to keep ourselves and our family members healthy as we celebrate holidays together.

Most newborn babies turn a little yellow. This is known as jaundice, and it's very common in the newborn period. But in some very rare cases it can be a sign of a more serious problem. Here's what parents need to know about it.

A 2022 study found that high blood pressure more than doubled the risk of being hospitalized from an Omicron-variant COVID-19 infection regardless of full vaccination, including a booster dose of an mRNA vaccine.

To protect the heart during the winter, it's important to take certain precautions. Steps include staying up to date on flu and COVID-19 vaccinations, avoiding cold remedies that can raise heart rate and blood pressure, figuring out where and how to exercise indoors if it's too cold to exercise outside, developing a regular practice of stress management (such as practicing yoga and getting enough sleep), and avoiding overindulgence when it comes to drinking alcohol or eating holiday foods.

Melatonin is a popular over-the-counter sleep aid. But because it is sold as a dietary supplement it is not regulated, and recent warnings include reports of melatonin overdoses in children. If parents need help getting their child to sleep, there are other things they can try first.

Autumn is when infectious respiratory diseases start to spread more readily. That's why October is the ideal time to boost your immunity against the viruses that cause flu and COVID-19.

Everyone experiences acute (short-term) diarrhea at some time. The unpleasant experience often resolves on its own in a few days, but there are situations that require medical attention. Examples include bloody diarrhea, severe abdominal pain, a high fever, and episodes that continue for a week or longer. A medical consultation can help determine if diarrhea is related to a specific bacterium or parasite, a medication side effect, a food intolerance, or an inflammatory bowel disease.

A yearly influenza vaccine may help lower the risk of serious cardiovascular complications, especially among people who've had a recent heart attack. Pneumonia and shingles vaccines also help reduce heart attack and stroke risks. Early fall is a good time to get back on track with these vaccines. Several different types of flu shots are available; experts advise getting whichever one is most readily available. For those ages 65 and older who have a choice, three vaccines (Fluzone High-Dose Quadrivalent, Flublock Quadrivalent recombinant, and Fluad Quadrivalent adjuvanted) may offer slightly better protection than the regular-dose shot and are the preferred choice.

Influenza vaccines that contain higher doses and extra ingredients (adjuvants) to boost their effectiveness can provide better protection than the standard flu vaccine for adults ages 65 and older, according to the CDC, and are recommended for the upcoming flu season.