加拿大今年已报告麻疹病例超5000例

Core Viewpoint - The resurgence of measles in Canada, with over 5000 reported cases this year, has raised significant public health concerns, particularly due to the role of unvaccinated individuals in the outbreak [1] Summary by Relevant Sections Measles Outbreak Data - As of September 20, Canada has reported 5006 cases of measles this year, with Alberta and Ontario being the most affected provinces [1] - A premature infant infected with measles in utero has died, marking a severe consequence of the outbreak [1] Vaccination and Public Health Response - Health officials attribute the large-scale outbreak primarily to unvaccinated individuals, highlighting the importance of vaccination [1] - Experts recommend that individuals planning to become pregnant complete the measles, mumps, and rubella (MMR) vaccination prior to conception [1] Nature of Measles - Measles is an acute respiratory infectious disease caused by the measles virus, primarily transmitted through respiratory droplets and aerosols [1] - Symptoms typically appear one to two weeks after exposure and can include high fever, cough, runny nose, red eyes, and rash, with severe cases potentially leading to pneumonia and death [1]