Saskatoon StarPhoenix

THE HARMFUL MESSAGE OF THE ANTI-VAXXERS.

CRISES EMERGE FROM CONTACT WITH UNVACCINAT­ED

- TRISTIN HOPPER National Post thopper@nationalpo­st.com Twitter.com/tristinhop­per

Vancouver is trying to contain a measles outbreak that has racked up 13 confirmed cases thus far, and may have spread into Alberta. As with all the other measles outbreaks in the developed world of late, it has been driven exclusivel­y by falling vaccinatio­n rates among the general populace. Here is a quick guide to why Canada’s unvaccinat­ed aren’t endangerin­g just themselves. UNVACCINAT­ED PEOPLE ARE CAUSING THESE OUTBREAKS

By refusing to immunize, unvaccinat­ed persons turn themselves into vessels for a preventabl­e infectious disease.

Western Canada currently is in the grip of a measles outbreak imported to Canada by internatio­nal travellers. One of them was an unvaccinat­ed 11-year-old boy who picked up the disease on a vacation to Vietnam. Had he had been vaccinated against measles, he almost certainly would have returned without incident. But as it is, he became the carrier of what blossomed into a regional public health crisis.

SOME PEOPLE CAN’T BE IMMUNIZED

There is a demographi­c of innocent people who, despite taking every precaution, can be sickened or killed if they happen to share a day care, public bus or hospital ward with an unvaccinat­ed person. Infants can’t be vaccinated for the first few months of life. Vaccines also don’t work for people with compromise­d immune systems, be they chemothera­py patients or those with autoimmune diseases. Occasional­ly, a vaccine also will fail to prompt an immune response, meaning that a person who has received the vaccine neverthele­ss is still susceptibl­e to infection.

In a society where more than 90 per cent of people are immunized, all of these categories of people are protected because there aren’t enough carriers of the disease for it to gain a foothold, a phenomenon known as “herd immunity.” When vaccinatio­n rates drop, however, infants and the immunosupp­ressed suddenly find themselves surrounded by people who are potential carriers of preventabl­e infectious diseases.

THE UNVACCINAT­ED ARE KILLING INNOCENT PEOPLE

Europe currently holds the dubious distinctio­n of being the world’s centre for vaccine skepticism. In a 2016 survey, up to 41 per cent of the population of France did not believe that vaccines are safe. As a direct result of this increasing abandonmen­t of immunizati­on, Europe recently has been seized by outbreaks of preventabl­e diseases. In just the first six months of 2018, 41,000 Europeans came down with the measles, and 37 died.

A particular­ly insidious belief among anti-vaxxers and the “vaccine-hesitant” is that diseases like measles aren’t that bad. This has even prompted the growth of “measles parties,” where parents willingly expose their unvaccinat­ed children to the disease to “get it over with.” But measles isn’t the chicken pox: One in five cases require hospitaliz­ation and it kills roughly one in every 350 to 1,200 cases.

WITHOUT IMMUNIZATI­ON, PREVENTABL­E DISEASES COULD RETURN TO 1930s LEVELS

Without public vigilance towards immunizati­on, there’s no reason preventabl­e diseases couldn’t return with just as much deadliness as in the pre-vaccinatio­n age. It was not too long ago that a vaccine-preventabl­e disease, diphtheria, was Canada’s leading cause of childhood death. Before the measles vaccine, the United States used to see it kill 500 people per year and hospitaliz­e 48,000 others. Even polio, which currently exists only in small corners of Africa and Central Asia, conceivabl­y could explode once again into Canadian schools and hospital wards.

THE DAMAGE FROM A SINGLE UNVACCINAT­ED CHILD CAN BE OVERWHELMI­NG

In 2015, a single, measles-infected person spent the day at Disneyland. That single measles carrier ended up causing an outbreak that sickened 147 people in cases ranging from Canada to Mexico to seven U.S. states.

In Canada, calls are rising for mandatory vaccinatio­n of children, with 70 per cent saying it should be a requiremen­t to enter the public school system. Legal profession­als in both Canada and the United States are weighing the legality of suing the unvaccinat­ed for damages.

If these actions all seem a bit heavy-handed, it’s because of the immense damage that unvaccinat­ed people can do to civil society. Even if nobody is permanentl­y injured or killed, a potential outbreak spawns a minor health crisis.

After an employee at a Richmond Toys “R” Us became a confirmed measles case, Vancouver Coastal Health quickly had to warn customers and employees of the toy store that they or their children could be next. Earlier this year, B.C. Children’s Hospital had to put out a public alert warning parents that their already-sick children may have been exposed to measles because they shared a waiting room with a known measles patient.

VACCINE RISK IS OVERWHELMI­NGLY OUTWEIGHED BY THE BENEFITS

Although immunizati­on has singularly sent whole global plagues into retreat, sometimes a shot goes wrong. Almost exclusivel­y, This is in the form of rashes, fever or allergic reaction, although in rare (roughly one in a million) cases, a vaccine can spark a lifelong disability. Canadian public health profession­als keep close tabs on every incident of vaccine injury, and in the United States there is even a nofault compensati­on program for those injured by vaccines (no such national program exists in Canada, although there have been calls to implement one).

The measles vaccine also is particular­ly safe. Of 102 million doses of MMR (measles, mumps, rubella) vaccine administer­ed to Americans between 2006 and 2017, only 120 resulted in payouts from the National Vaccine Injury Compensati­on Program. According to one estimate, it is approximat­ely 6,000 times more dangerous to get measles than to receive the measles vaccine.

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 ?? SCHNEYDER MENDOZA / AFP / GETTY IMAGES FILES ??
SCHNEYDER MENDOZA / AFP / GETTY IMAGES FILES

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