When was the measles outbreak in Canada?

When was the measles outbreak in Canada?

Background. The largest measles epidemic in North America in the last decade, occurred in 2011 in Quebec, Canada, where rates of 1- and 2-dose vaccine coverage among children 3 years of age were 95%–97% and 90%, respectively, with 3%–5% unvaccinated.

What has led to the outbreaks of measles in Canada?

An outbreak of measles in Canada is what public health officials say they have been fearing. The most likely scenario for an outbreak is an unvaccinated visitor from an endemic area, or an unvaccinated Canadian returning from such an area, bringing in the virus and spreading it among contacts.

When was measles declared eliminated in Canada?

Canada has been free of endemic measles (defined as an identifiable chain of transmission lasting over 12 months) since 1998 and measles was declared eliminated in the Americas in 2002. However, measles cases and outbreaks continue to occur in Canada due to periodic importation.

When did Canada stop polio vaccine?

The incidence of polio in Canada was dramatically reduced by the introduction of immunization programs in the 1950s. In Canada, after using the live attenuated oral polio vaccine (OPV) for many years, its use was replaced with an inactivated poliomyelitis vaccine (IPV) in 1995/1996.

Is there still measles in Canada?

While measles spreads routinely in many parts of the world, it does not naturally circulate in Canada. However, cases have been reported in travellers to Canada from countries where measles is a concern.

Is measles endemic in Canada?

Endemic measles has been eliminated in Canada; however, imported cases continue to occur.

When did chickenpox vaccine start in Canada?

The first universal varicella immunization program in Canada was initiated in Prince Edward Island in 2000. Students in grades one to six without a history of varicella were offered the vaccine, administered by Public Health Nurses, in school clinics during February and March 2000.

When did they start giving measles vaccine in Canada?

1963 The first measles vaccine is approved. Prior to immunization, an estimated 300,000 to 400,000 cases occurred annually. 1964 The National Advisory Committee on Immunizing Agents (now the National Advisory Committee on Immunization or NACI) was formed. 1968 No cases of wild polio virus were reported in Canada.

Does Canada still vaccinate against polio?

Poliomyelitis-containing vaccines Live attenuated oral polio vaccine (OPV) is no longer recommended or available in Canada because most cases of paralytic polio from 1980 to 1995 were associated with OPV vaccine. OPV vaccine continues to be widely used internationally.

What vaccinations were given in the 70s in Canada?

A combined measles-rubella vaccine, MR, was first available in 1972, and then a new mumps vaccine was added to create the MMR combination, which came into general use in Canada in 1975.

Is measles eradicated in Canada?

As a result of high 2-dose vaccine coverage, the last case of measles due to endemic transmission occurred in 1997. Canada achieved measles elimination in 1998. However, imported cases continue to occur today (Figure 2).

When did they stop giving the polio vaccine in Canada?