Measles Questions Answered: Facts & Information
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Measles, a highly contagious viral illness, remains a significant public health concern.Understanding your immunity status and vaccination history is crucial for personal protection and community well-being. This article delves into key questions surrounding measles immunity, vaccination, and Canada‘s approach to the disease.
Understanding Measles Immunity: Natural Infection vs. Vaccination
The consensus among health authorities is clear: It says those who have had a past measles infection should be immune against another one, as long as they have a normal immune response. This natural immunity is a powerful defense. though, for those without a confirmed history of infection or vaccination, proactive measures are recommended.
I’ve Lost My Vaccination Records. Should I Get Another Dose?
Generally, yes, according to the Public Health Agency of Canada (PHAC).PHAC recommends that children and adults who lack records of their vaccination history be initiated on an immunization schedule tailored to their age and risk factors.
Even if you believe you’ve already been vaccinated, receiving an additional dose is generally considered safe. PHAC notes that healthcare providers have not observed additional side effects from repeated immunization.
Dawn Bowdish, a professor of immunology at McMaster University, highlights the significant need for a national vaccine registry. “the number of peopel who are looking to figure out if they got one dose, if they got two doses, if they were vaccinated as children and perhaps they just moved provinces and they can’t get their records is extremely high,” she states. This underscores the challenges many face in confirming their vaccination status.
Two doses of the measles, mumps, and rubella (MMR) vaccine offer almost 100 per cent effectiveness against the virus in the long term, providing robust and lasting protection.
Can I Check My Immunity to Measles?
The ability to check your immunity to measles depends on your circumstances.
PHAC advises against routine testing for laboratory evidence of measles immunity for the general population. However, certain groups may be eligible for a blood test to detect measles antibodies. These include healthcare workers who interact with vulnerable populations and some pregnant women.
Individuals who have received two doses of a measles-containing vaccine, or those born before 1970, are generally presumed to be immune to the virus.
Do We Screen for Measles Vaccination Status Among People Entering canada?
No, proof of measles vaccination is not mandatory for entry into Canada.
Immigration, Refugees and Citizenship Canada states that permanent residents and certain temporary residents are required to undergo an immigration medical exam before arriving in Canada. This exam includes screening for specific communicable diseases. During this medical examination, some individuals may be offered vaccinations, including the MMR shots.
Healthcare providers working with recent immigrants and asylum seekers report that their patients are typically receptive to receiving any childhood vaccinations they may have missed.However, they suggest that the federal government could enhance pre-departure vaccination programs and streamline access to medical and vaccination records across borders to further bolster public health efforts.