Since the nationwide COVID-19 vaccination program with the Pfizer-BioNTech vaccine started in Israel, the rates of mechanical ventilation have been reported to decline about two-thirds among older adults with the disease.

Investigators compared adults 70 years of age and older, who had the highest two-dose vaccination coverage in February, to adults 50 years of age and below, who had the lowest coverage. They compared the rates of mechanical ventilation in the two groups during October to December last year to the rates in February this year. They reported in the Morbidity and Mortality Weekly Report that the rates of mechanical ventilation among COVID-19 patients aged 70 years and above dropped by 67% between fall 2020 and February 2021, in comparison with patients below 50 years of age.

The ratio of ventilated older patients to younger patients was reported as 1.9:1… (Medpage Today)