Flu Symptoms & Complications

The most harmful adverse impact is a severe allergic reaction to both the virus materials itself or residues from the hen eggs used to grow the influenza; nonetheless, these reactions are extraordinarily uncommon. Babies and kids younger than 5 years old—and especially these youthful than 2 years old– are extra likely than older kids to have issues from the flu.

  • Among nursing residence residents, vaccine can reduce the risk of hospitalization by about 50%, the chance of pneumonia by about 60%, and the chance of demise by seventy five%-eighty%.
  • Studies show the vaccine reduces hospitalization by about 70% and demise by about 85% among the aged who aren’t in nursing homes.
  • Past research of wholesome younger adults have shown influenza vaccine to be 70%-ninety% effective in preventing illness.
  • In the elderly and people with certain chronic medical circumstances such as HIV, the vaccine is often less effective in stopping sickness.