That question will soon need to be answered, because both the pharmaceutical giant GlaxoSmithKline (in conjunction with the US National Institute of Allergy and Infectious Diseases) and the Public Health Agency of Canada have candidate vaccines in development.
这一问题很快就会成为必须回答的问题，因为制药巨头葛兰素史克（与美国国家过敏和传染病研究所（US National Institute of Allergy and Infectious Diseases）一起）和加拿大公共卫生署（Public Health Agency of Canada）已经在研发备选疫苗。