Every person aged 6 months or older should receive an influenza vaccination every year. Vaccination is especially important for people at high risk of influenza complications, such as older adults, younger children, pregnant women, and people with weakened immune systems. The first time a child is given a flu vaccine, he or she may need two doses given four weeks apart. After that, they can receive a single dose of the flu vaccine each year. The vaccine significantly reduces a child's risk of flu-related death, according to a 2017 study. Consult your child's doctor. Complications of influenza can also be caused by chronic medical conditions. Causes of complications include cancer or cancer treatment, asthma, heart disease, diabetes, HIV/AIDs, and brain or nervous system conditions. Obesity, kidney or liver disease, cystic fibrosis, and more. The flu vaccine is recommended for anyone with a chronic medical condition. Flu vaccines are also recommended for people living in nursing homes or other long-term care facilities.