Symptoms of Influenza or Flu and Covid-19 are overlapping, experts believe that the flu shot will help protect children and avert panic among parents. Influenza/ Flu is an extremely contagious viral infection that may affect the airways and lungs of a child and is one of the most common respiratory illnesses encountered during the years. They advise routine consulting with the pediatrician for annual Flu vaccination for kids aged 6 months to 5 years.