![]() Can non-US citizens receive a vaccine and will getting vaccinated affect my immigration status?.Should I get the vaccine if I have allergies?.Can the COVID-19 vaccine make me infertile/sterile?.Should I get the vaccine if I am breastfeeding?.Are the vaccines safe for pregnant people?.What ingredients are in the COVID-19 vaccines?.However, she cautioned that people, particularly older people, must remember that they're not fully protected against COVID-19 during the period between doses.Read answers to commonly asked questions about COVID-19 vaccines. "I feel strongly that the Canadian strategy which prioritized a single shot into as many people as possible has saved an inordinate number of lives," Kelvin said in an email to CBC News. Prof. Alyson Kelvin, a virologist at Dalhousie University and the IWK Health Centre in Halifax, agreed that the British study results support Canada's dose-spacing strategy. "In fact, we anticipated that the boost response would be improved by that extended interval." "We underscored that extending the interval between first and second doses would enable more people to benefit from the substantial protection offered by a single dose without negatively affecting the second dose boost response," Skowronski said. ![]() Danuta Skowronski of the BC Centre for Disease Control, whose research helped guide Canada's decision to extend the interval between COVID-19 vaccine shots, in an email to CBC News. "The findings are not a surprise," said Dr. 'Not a surprise,' Canadian vaccine expert saysĮxperts in Canada said the British findings show that a fundamental principle of how vaccines traditionally work appears to apply in mRNA vaccines like Pfizer-BioNTech. for delaying that second dose has really paid off," Gayatri Amirthalingam, consultant epidemiologist at Public Health England, told reporters. However, taken with data showing good protection against hospitalization and death from just one shot of Pfizer vaccine, Public Health England said the study was further supportive evidence in favour of the delayed-dose approach. The authors warned against drawing conclusions on how protected individuals were based on which dosing schedule they received. The study, which has not yet been peer-reviewed, looked at 175 people aged between 80 and 99, and found that extending the second dose interval to 12 weeks increased the peak antibody response 3.5-fold compared to those who had it at three weeks.
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