1/29/2024 0 Comments Flu shot side effect heart![]() "This was like nothing," she said, adding that within 48 hours she felt completely normal. "I had a full-blown fever, teeth chattering - just ridiculous side effects." But her booster shot, which was the Moderna mRNA vaccine, felt much milder. "J&J knocked me out," Alex Ossola, who received her first dose of the vaccine soon after it became available in February, told TODAY. ( Mixing and matching could make it even more challenging to predict which side effects you'll experience.) Aaron Milstone, associate hospital epidemiologist at the Johns Hopkins Hospital and pediatric infectious disease specialist at the Johns Hopkins Children's Center, told TODAY. They may be more or less severe than the ones you experienced previously, Dr. The side effects you experience after your booster dose may be different than what you felt after your first dose(s). An especially sore arm might make it difficult to work out or cook breakfast, for instance, and chills may leave you tossing and turning for a night. But, for some people, those symptoms can be so intense they have trouble doing their usual tasks. Play it safe.All adults are now eligible for COVID-19 booster shots, which means more people than ever have already or will soon be experiencing side effects from their boosters.Īs with the original vaccine doses, most COVID-19 booster shot side effects are mild, flu-like and temporary. The same is true of people who are at increased risk for heart disease, including people over 60, smokers, or anyone with high blood pressure or diabetes. So, I agree with your doctor: the fact that you have heart disease makes it even more important that you get a flu shot each year. Getting a flu shot reduced the risk of a heart attack and related cardiac events by 34% the protection was even greater in people who had recently experienced heart trouble. In one study of 80,000 adults with influenza, nearly 12% had a serious cardiac event, such as a heart attack, during or in the weeks after getting the flu.Īlthough having the flu definitely increases the risk of a heart attack, what's the evidence that getting a flu shot protects against a heart attack? An analysis published online April 29, 2022, by JAMA Network Open combined the results of six randomized trials involving over 9,000 people. Is this risk more than theoretical? Many careful studies have shown there is an increased risk of heart disease following a bout of flu. This can lead to a heart attack or cardiac arrest (sudden death). When the effect of the flu on the lungs lowers the amount of oxygen in the blood, this further reduces the supply of oxygen to the heart. ![]() Because atherosclerosis narrows the arteries and reduces the flow of blood, less oxygen reaches the heart muscle. Many people over age 50 have atherosclerosis - and in some people it has not yet been diagnosed. ![]() Instead, the adverse effects of the virus on the heart are due to atherosclerosis of the arteries of the heart. How does flu affect the heart? The virus only rarely infects the heart directly. By comparison, about 40,000 people die in auto accidents in the U.S. This is not just a rare event: the CDC estimates that from 2010 to 2020, the flu resulted in 140,000 to 710,000 hospitalizations and 12,000 to 52,000 deaths each year in the United States. As a result, the flu can lead to hospitalization and death. In addition, the effect of the flu on the lungs can cause blood oxygen levels to drop to dangerously low levels. ![]() Unfortunately, the symptoms of the flu are usually more severe than those of a common cold: worse coughing, much worse aching and fatigue, and higher fever. Many patients have told me that they don't see the value in getting flu shots because "it's just the flu." They imagine that influenza ("the flu") is nothing more than the common cold and will just go away in a few days. ![]() What does the flu have to do with the heart?Ī. I have heart disease, and my doctor says that makes it more important for me to get a flu shot. ![]()
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