Unvaccinated people were 11 times as likely to die from Covid-19 than vaccinated peers during this summer’s Delta-driven surge, according to a trio of studies released Friday
In a trio of studies released Friday underscoring the effectiveness of Covid-19 vaccines even against the highly contagious Delta variant, the Centers for Disease Control and Prevention examined Covid-19 outcomes among patients who visited emergency departments, urgent care centers and veterans’ hospitals.
Another study, which examined more than 600,000 cases in 13 states and large cities, examined two time periods in the spring and summer and found a slight decline in vaccine effectiveness during the period whenBefore Delta became the most widespread variant, it was causing 16 times as many deaths a week, on average, among the unvaccinated as among the vaccinated, the study found. After Delta took hold, that ratio fell to 11 times as many deaths.