Vaccination against measles: not more than 3 schools out of 10 reach the coverage threshold

Vaccination contre la rougeole: pas plus de 3 écoles sur 10 atteignent le seuil de couverture

Between 28 January and 23 September 2019, 49 confirmed cases of measles were reported in Quebec by five regions, the Laurentians (30), Montreal (9), Laval (6), Montérégie (2) and the Capitale-Nationale (2), reports the ministry.

17 December 2019 21h37

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Vaccination against measles: not more than 3 schools out of 10 reach the coverage threshold

Vaccination contre la rougeole: pas plus de 3 écoles sur 10 atteignent le seuil de couverture

Elizabeth Fleury

The Sun

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Only 14% of primary schools and 30 % of Quebec’s secondary schools had reached at the end of the school year 2018-2019 a measles vaccination coverage of 95 %, the threshold to be reached to ensure the herd immunity of the population of quebec.

Depending on the region of school attendance, the proportion of schools with a vaccination coverage of at least 95 % ranged from 2% to 80 % at the elementary level, and from 3% to 100 % at the secondary level, reports the ministry of Health in its bulletin Flash Watch of the month of December.

Based on these data, 86 % of primary schools and 70 % of secondary schools would have to apply the policy of removal of people not vaccinated or without proof of vaccination if a case of measles among students or staff, says the department.

“The threshold of vaccination coverage required to ensure herd immunity of the population of quebec […] is not reached, the appearance of secondary cases, beyond a generation, transmission, and situations similar to those of the regions of the Laurentians, Laval and Montreal are more predictable and no region is immune,” warns the ministry of Health, while stressing the importance of vaccination.

49 confirmed cases

Between 28 January and 23 September 2019, 49 confirmed cases of measles were reported in Quebec by five regions, the Laurentians (30), Montreal (9), Laval (6), Montérégie (2) and the Capitale-Nationale (2), reports the ministry.

The majority of the cases (37, or 75 %) have acquired the infection in Quebec, while for 10 cases, the disease was acquired outside, when traveling in Europe, Asia and the United States. For both cases, the place of acquisition could not be determined.

“The number of cases reported since the beginning of the year 2019 is at the top of the expected values”, underlines the ministry of Health. Since 2001, in the absence of an outbreak, the Quebec knows usually a maximum of four cases of measles annually, generally acquired on a trip abroad.

A significant proportion (71 %) of the reported cases in 2019 are linked to an outbreak that began in mid-June and affected the regions of Laurentides and Laval. Infection have been reported from the outside by a person born before 1970 belonging to the hasidic jewish community in Boisbriand, and that was considered protected because of his age.

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