MONTREAL — Quebec health authorities are examining how seven residents of a Montreal long-term care centre contracted COVID-19 despite being among the first to receive the Pfizer-BioNTech vaccine in the province.

Management at the Maimonides Geriatric Centre informed residents of the cases in a notice Tuesday, noting that residents were infected within 28 days of receiving the first of two vaccine doses.

Quebec has decided to delay administering second doses to patients and has instead chosen to give a first dose to as many people as possible. Last week, a dozen Maimonides residents sued the province to obtain a second dose within 21 days of their first dose — the time frame set by the vaccine manufacturer.

https://ca.yahoo.com/news/seven-residents-montreal-care-home-160429859.html