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Periods of Exclusion - Childhood Diseases

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Some childhood diseases are contagious, and children with them should remain home from school under certain conditions. Learn more about periods of exclusion.

If you suspect that your child has a communicable disease that might spread to others:

  • Keep your child at home and away from others
  • Contact your family doctor for a diagnosis
  • Your doctor will advise you about care and treatment when a communicable disease is diagnosed.

Children with the following diseases should remain at home and away from others.

List of communicable diseases

Chickenpox (Varicella)

  • Children with mild chickenpox can attend child care regardless of the state of their rash, as long as they feel well enough to participate in all program activities

Diarrhea

  • Daycare: Until 24 hours after diarrhea stops*
  • Schools: Until diarrhea stops*

*Depending on the cause, the Health Department may require a longer period of exclusion.

Fifth's Disease (Parvovirus)

  • No exclusion
  • Children well enough to participate in all activities can attend school

Impetigo

  • Until the antibiotic prescribed by a doctor has been taken for at least 24 hours and they feel well enough to participate

Measles (Rubella)

  • For at least 4 days after the rash begins
  • Non-immune children and staff must be excluded for 2 weeks after the onset of rash in the child diagnosed with measles, unless they have been vaccinated within 72 hours of first exposure

Mumps

  • For at least 5 days after the swollen glands first appear

Pink-eye, bacterial (conjunctivitis)                 

  • Until the antibiotic prescribed by a doctor has been taken for at least 24 hours

Ringworm

  • Until first treatment has been started

Rubella (German measles)

  • Until at least 7 days after the rash first appears

Scabies

  • Until after the first treatment

Scarlet fever

  • Until antibiotic prescribed by a doctor has been taken for at least 24 hours and they feel well enough to participate in activities

Strep throat

  • Until antibiotic prescribed by a doctor has been taken for at least 24 hours and they feel well enough to participate in activities

Whooping cough (Pertussis)

  • Exclude until 5 days of appropriate antibiotic treatment received or for 3 weeks from onset of illness, if not treated

Source: Canadian Paediatric Society

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