COVID severity decreasing over time is most likely scenario as pandemic progresses, WHO says – CBC

WHO head cautioned periodic spikes in cases, deaths may occur as immunity wanes

Mar 30, 2022

The World Health Organization has released an updated plan for COVID-19, laying out three possible scenarios for how the pandemic will evolve this year.

“Based on what we know now, the most likely scenario is that the COVID-19 virus continues to evolve, but the severity of disease it causes reduces over time as immunity increases due to vaccination and infection,” Director General Tedros Adhanom Ghebreyesus said during a Wednesday briefing.

However, the WHO head cautioned that periodic spikes in cases and deaths may occur as immunity wanes, which may require periodic boosting for vulnerable populations.

Talking about the other two potential scenarios, Tedros said either less severe variants will emerge and boosters or new formulations of vaccines will not be necessary, or a more virulent variant will emerge and protection from prior vaccination or infection will wane rapidly.

COVID severity decreasing over time is most likely scenario as pandemic progresses, WHO says – CBC

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