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World NewsWHO says omicron has not spread widely among vulnerable, severity unclear

WHO says omicron has not spread widely among vulnerable, severity unclear

A Covid-19 speedy PCR take a look at website signal at Cape Town International Airport in Cape Town, South Africa, on Friday, Dec. 3, 2021.

Dwayne Senior | Bloomberg | Getty Images

The World Health Organization on Wednesday cautioned that omicron has not spread widely among the populations most in danger, making it tough to find out whether or not or not the Covid variant is inherently much less extreme than earlier strains of the virus.

Dr. Abdi Mahamud, the WHO’s incident supervisor for Covid, mentioned information from South Africa suggesting omicron causes milder sickness is encouraging, however the variant has principally contaminated youthful individuals thus far who typically develop much less extreme illness from Covid.

“We all want this disease to be milder, but the population it affected so far is the younger. How it behaves in the elderly population, the vulnerable — we don’t know yet,” Mahamud mentioned throughout a press briefing in Geneva.

“It’s too early to determine,” Mahamud mentioned, including that there is not sufficient information on how omicron impacts individuals over 60, those that have underlying medical circumstances, and the unvaccinated. “We’re optimistic, but I think we shouldn’t over interpret the data coming from South Africa.”

Dr. Mike Ryan, govt director of the WHO well being emergencies program, famous that enormous numbers of individuals in South Africa have antibodies from prior an infection. Those antibodies might present a point of immune safety, making omicron look milder than it could be in a inhabitants the place many individuals do not have antibodies from prior an infection.

Ryan cautioned that hospitalizations are rising in some nations in Europe, however it’s unclear whether or not the rise is from omicron or delta. He mentioned omicron is slowly shifting into older age teams, and extra information will quickly emerge on how it’s impacting these individuals.

“What we haven’t seen is the omicron wave fully established in the broader population,” Ryan mentioned. “I’m a little nervous to make positive predictions until we see how well the vaccine protection is going to work in those older and more vulnerable populations.”

Ryan, echoing the warnings of many public well being officers, mentioned omicron can nonetheless produce excessive ranges of hospitalizations just because it spreads so rapidly. The WHO has beforehand mentioned omicron spreads sooner than any previous variant of Covid.

“I don’t think anyone is certain yet as to how this is going to play out,” Ryan mentioned. “It’s really important over the coming weeks that we suppress transmission of both variants to the minimum that we can until we see what the impact of this virus is in those older, more vulnerable populations.”

South African scientists who studied hospital admissions at a big hospital within the metropolis of Tshwane discovered that omicron prompted much less extreme illness than previous waves of an infection.

Covid deaths on the hospital had been 4.5% throughout omicron in comparison with 21.3% in previous waves, whereas admissions to intensive care models had been 1% throughout omicron in comparison with 4.3% in previous waves. About 45% of sufferers in Covid wards required supplemental oxygen throughout omicron, in comparison with 99.5% through the first wave of the virus in South Africa.

White House chief medical advisor Dr. Anthony Fauci on Wednesday mentioned all indications thus far counsel omicron causes much less extreme illness than the delta variant. However, Fauci cautioned towards complacency, noting that it is unclear how omicron will influence nations with completely different demographics such because the United States.

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