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A (9) | B (4) | C (10) | D (1) | E (5) | F (2) | G (3) | H (15) | I (5) | L (6) | M (9) | N (1) | O (1) | P (5) | R (4) | S (7) | T (5) | U (1) | V (3) | W (2) | Y (2) | Z (1)
An alphabetical listing of Health Topics.
Titlesort descending
Haemophilus Influenzae Type b (Hib)

Haemophilus Influenzae (Hi) is caused by a bacterial infection. There are many types or “strains” of it. The sickness can be mild or very serious. If the infection gets into the bloodstream, brain, or other areas where it’s usually not found, it can cause severe infection.

Hand, Foot, and Mouth Disease

Hand, foot, and mouth disease is a common viral illness that usually affects infants and children younger than 5 years, but it can occur at any age.

Handwashing Hand Hygiene is the single most important way to control the spread of infection. View the list of steps on how to properly wash and sanitize your hands.
Head Lice

If your child comes home with head lice, you may have a lot of questions.

Heat Illness

For most people, heat-related illnesses happen when temperatures are high for a number of days (particularly if the night time temperatures do not drop), or if the humidity is high. While the health risks related to heat are higher for certain groups (such as seniors, young children, people taking certain medications and people with chronic conditions), everyone is potentially at risk. Fortunately, most heat-related illnesses can be prevented or treated if you are aware of the risks, signs and symptoms.

Hépatite A

L’hépatite A est une infection du foie causée par un virus. La maladie est généralement mineure chez les enfants, mais peut être plus grave chez les adultes.

Hepatitis A

Hepatitis A (Hep A) is an infection of the liver, caused by the hepatitis A virus.

Hepatitis B

Hepatitis B is a virus that can permanently damage your liver and is a leading cause of liver cancer. There is no cure for hepatitis B, and it can sometimes lead to death.

Hepatitis B Immunization Program for Grade 7 Students

Anyone of any age can get the hepatitis B vaccine. People of certain high risk categories are able to receive the provincially funded vaccine through our Health Unit.

Hepatitis B Vaccine

Anyone of any age can get the hepatitis B vaccine. People of certain high risk categories are able to receive the provincially funded vaccine through our Health Unit.

Hepatitis C

Hepatitis C is a virus that you can get from contact with an infected person’s blood.

HIV (AIDS)

HIV (Human Immunodeficiency Virus) is the virus that causes Acquired Immune Deficiency Syndrome (AIDS).

Human Papillomavirus (HPV)

HPV is a very common virus that can cause many types of cancers.

Human Papillomavirus (HPV) Vaccine

Females aged 9 to 45 years old and males aged 9 to 26 years old should get the HPV vaccine. The provincial government is funding the voluntary HPV vaccination program for all grade 7 males and females in Ontario. This means that all males and females starting in grade 7 can get the vaccine free from the Health Unit.

Hydrogen Sulfide

Hydrogen sulfide (H 2S) is a flammable (only at very high concentrations), colorless gas that smells like rotten eggs.