The World Health Organization (WHO) has released a plan outlining 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 the disease it causes decreases over time as immunity increases in reason for vaccination and infection », Chief Executive Tedros Adhanom Ghebreyesus told a news conference. a briefing on Wednesday.
However, the WHO chief warned that periodic spikes in cases and deaths may occur as immunity wanes, which may require periodic boosting for vulnerable populations.
“In the best-case scenario, we would see less severe variants emerge and there will be no need for new booster dose formulas and vaccines”to fight them added the boss of the UN organization.
Corn “in the worst-case scenario, a more virulent and highly transmissible virus emerges. Faced with this new threat, the protection of populations – thanks to a previous vaccination or infection – against severe forms of the disease or death will be reduced rapidly.“, explains doctor Tedros Adhanom Ghebreyesus. It would then be necessary to modify the existing vaccines significantly and to ensure that they are distributed to the most vulnerable people.
Speaking of the other two potential scenarios, Tedros said either less severe variants will emerge and boosters or new vaccine formulations won’t be needed, or a more virulent variant will emerge and protection against a previous vaccination or infection will quickly wane.
The updated Strategic Preparedness and Response Plan sets out the strategic adjustments each country needs to make to address SARS-CoV-2 transmission factors, mitigate the impact of Covid-19 and end the emergency world.
This is the third strategic preparedness and response plan released by the WHO and will likely be the last, Tedros said.