Older children or adults who never had the disease should be vaccinated as well. Pregnant women and people with weakened immune systems should not receive it. Like most other vaccines, the chickenpox vaccine will be injected into the arm. The vaccine is 70 to 90 percent effective in preventing chickenpox. If you are immunized and get chickenpox, it's usually a very mild form of the disease.
Some people experience mild soreness, redness, swelling or a rash at the injection site.
Reactions usually occur within the first two days of the vaccination but can occur up to one month later. When the temperature and relative humidity soar into the 90s, the weather can have a severe effect on your health. Whether you're working or playing outdoors, be alert to warning signals of heat-related illnesses, says Joseph Zeccardi, MD, director of the division of emergency medicine. Fainting spells or light-headedness are symptoms of heat exhaustion. If you start feeling faint, cool off inside, replenish body fluids and take deep breaths to increase oxygen to the blood.