March 28, 2022 Clinical Research Israeli study reports fourth COVID vaccine dose for people 60-100 years old significantly lowers COVID death rate.
February 15, 2021 Clinical Research Israeli study offers more evidence of Pfizer vaccine efficacy with 94% drop in symptomatic cases and 92% decrease in severe illness in people aged 55 and older.—- Restriction-easing plan in Ontario risks Yo-Yo effect once again.