Omicron across Africa was twice as fast as Delta

Monday, December 6, 2021 (HealthDay News)

Scientists report that the Omicron mutant appears to spread twice as fast as the Delta mutant, primarily due to the combination of infectivity and the ability to dodge the body’s immune defenses.

According to the results of the analysis posted in, it is still unclear to what extent each factor contributes to the spread of Omicron. twitter Sunday.

“I don’t know what the mixture is,” said research leader Karl Pearson, a math modeler at the London School of Economics and Tropical Medicine.New York Times..

But the good news is that Dr. Anthony Fauci said on Sunday that Omicron variants do not seem likely to cause serious illness.

“It’s too early to make a definite statement about it, but so far it doesn’t seem to be that serious,” Fauci said. CNN Sunday’s State of the Union address.

He expressed his existing confidence vaccination “If it actually begins to settle in the dominant way in this country, it will give some, and perhaps a considerable degree, of protection to Omicron variants.” Washington post report.

His assessment may calm concerns that Omicron variants could overwhelm the medical system with a surge in hospitalizations and deaths this winter.

Why does the severity of the illness decrease?Preliminary research by a Massachusetts company found that Omicron mutants have the genetic code cold, This suggests that there may be more variants Infectious However, it causes less serious illness. The study has not yet been peer-reviewed, and co-author of the study, biotechnician Venky Soundararajan, said: director Further analysis of the variant is needed.

In a South African study, researchers conducted a mathematical analysis of the spread of Omicron in the country until late November, and the Rt (a measure of the rate of spread of the virus) of the subspecies was almost 2.5 times higher than that of the Delta. I found that. Times report.

Rt is determined by both Infectious A virus is the ability to evade the body’s immune system.

At the end of last week, researchers said Omicron might partially dodge previously obtained immunity. COVID-19 (new coronavirus infection) Infected, but it is still unclear how much protection it provides can be circumvented. vaccination, NS Times report.

Some experts believe in Omicron’s ability to evade immunity from previous infections vaccination It may be similar.

“I’m scared that so many reinfections are happening. vaccinationAkiko Iwasaki, an immunologist at Yale University, Times..

Omicron has been reported in almost 20 countries, including the United States.

For more information

Visit the US Centers for Disease Control and Prevention Prevention For more information COVID variant..

sauce: New York Times; Washington Post

Robert Plate and Robin Foster

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