回复14楼::
你说"加拿大推荐老人打Moderna,因为更有效？
放屁！"
https://www.publichealthontario.ca/-/media/documents/ncov/vaccines/2022/01/covid-19-oiac-4th-dose-recommendations-older-adults-ltc.pdf?sc_lang=en
Recommendations: Fourth COVID-19 Vaccine Dose for Long-Term Care Home Residents and Older Adults in Other Congregate Settings
Any mRNA vaccine product is acceptable as a fourth dose, although data suggest that Moderna Spikevax COVID-19 vaccine may provide a more robust humoral and cellular immune response.
看得懂不?自己读

编！为什么时候说了？
加拿大推荐老人打Moderna,是因为想把辉瑞留给年轻人。
因为加拿大不推荐年轻人打摩德纳。