Studies also have found higher antibody levels in older adults who received high-dose flu vaccines than in those who received standard-dose flu vaccines.īut any flu vaccination is better than none. Looking at previous flu seasons, researchers found that among people age 65 and older, high-dose flu vaccines generally help prevent flu-related hospital stays better than the standard-dose flu vaccines do. Rates for hospital stays and death linked to flu are generally higher in this age group than they are for younger people. People age 65 and older are generally at higher risk than others for severe flu and complications. Why is it needed?įlu data collected by the CDC shows that standard-dose flu vaccines likely don't work as well in people over age 65 as they do in younger populations. But it boosts the immune response by including an ingredient called an adjuvant. One flu vaccine recommended for older adults has the same amount of antigen as the standard dose vaccine. Flu spreads easily and can cause serious illness, especially for young children, older people, pregnant women, and people with certain chronic conditions like asthma and diabetes.Some high-dose flu vaccines include 3 to 4 times as much flu virus antigen - the part of the vaccine that stimulates the immune system - as standard flu vaccines. Flu viruses infect the nose, upper airways, throat, and lungs. What is flu?įlu- short for influenza-is an illness caused by influenza viruses. Your child’s flu vaccine will protect against flu all season, but they will need a vaccine again next flu season for best protection against flu. Also, protection provided by flu vaccination wears off over time. Why does my child need a flu vaccine every year?įlu viruses are constantly changing, so new vaccines are made each year to protect against the flu viruses that are likely to cause the most illness.
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