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Toddlers & Preschoolers

Childhood Illnesses

Common Childhood Illnesses

Common childhood illnesses

There are various illnesses your toddler/preschooler may develop. Some illnesses may be very serious, and require you to go to the doctor, and others may resolve on their own.

Chickenpox

  • Chickenpox is a very common infection in childhood. It is caused by the varicella-zoster virus, which only infects people (See chickenpox).
  • There is a vaccine (varicella vaccine) now available to prevent chickenpox.
  • Chickenpox is common in children and is usually mild. When adults get it, however, they can be very sick. Most adults have already had chickenpox and will not get it again.
  • Chickenpox is also very dangerous for people with immune system problems like leukemia, or for people who are taking drugs which suppress the immune system, such as steroids.

Head lice

Head lice are common in children and are not a sign of poor hygiene.

Head lice are tiny insects that are about 1 to 2 mm long, about the size of a sesame seed. They stick to the hair close to the scalps and can look like dandruff.

One of the first signs of head lice is an itchy scalp, but it’s possible to have head lice without any symptoms.

For more information on head lice go to About Kids Health and Caring For Kids.

For more information:

Region of Peel - Public Health
905-799-7700
Monday to Friday 8:30 a.m. to 4:30 p.m.
to speak with a Public Health Nurse

Caledon residents call free of charge at 905-584-2216


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Revised: Monday April 08 2019

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