About vaccines

The health sustaining power of vaccines cannot be over-stated. Vaccines have virtually eliminated many once-feared diseases that claimed the lives of entire communities.

Now that childhood diseases, such as diphtheria, measles and pertussis (whooping cough) no longer present the frightening spectre they once did, parents sometimes wonder why their children must receive so many shots and, moreover, wonder about the safety of vaccines.

Adults also sometimes hesitate to choose vaccination against infection that could seriously threaten or undermine their health and wellbeing.

Rumours and misinformation abound. For example, some parents worry that routine childhood vaccination may weaken their infant's immune system or that certain vaccines may actually be the cause of diseases such as autism, multiple sclerosis or diabetes. While parents hesitate to vaccinate in an effort to protect their child, they are, in fact, placing their child in harms way.

It is important to be informed, so that you can separate myth from well-documented fact. For information about vaccines you can visit the sources listed below and find answers to questions such as:

Links for further information:

Public health agency of Canada
www.publichealth.gc.ca

Canadian Paediatric Society
www.cps.ca

Canadian coalition for immunization awareness and promotion
www.immunize.cpha.ca

Vaccine Education Center at The Children's Hospital of Philadelphia
www.vaccine.chop.edu

World Health Organization
www.who.int



Did you know?
image of Campylobacter bacteria

Campylobacter bacteria are the number one cause of food-related gastrointestinal illness in the United States. This scanning electron microscope image shows the characteristic spiral, or corkscrew, shape of C. jejuni cells and related structures.

Credit: Photo by De Wood, digital colorization by Chris Pooley, ARS, USDA.

Source: Agricultural Research Service (ARS) is the U.S. Department of Agriculture's chief scientific research agency.

BACKGROUNDER

Immunization:
Inoculation and Vaccination

Inoculation (also known as variolation) was introduced to the west by Lady Mary Wortley Montagu (1689-1762), who witnessed inoculation being
portrait of lady
practiced by physicians in Constantinople,[12] and was greatly impressed:[13] she had lost a brother to smallpox and bore facial scars from the disease herself. In 1718 she had the embassy surgeon inoculate her son, and in 1721, after returning to England, had her daughter inoculated[14]. In 1722 the Prince of Wales' daughters received inoculations[16].

The practice of inoculation slowly spread amongst the royal families of Europe, followed by general adoption amongst the rest of the population. Given the severe consequences of smallpox in Europe in the 18th century, many parents felt that the benefits outweighed the risks and so inoculated their children.[21] [22]