Tracking the next pandemic: Avian Flu Talk |
3 times more likely to infect? |
Post Reply |
Author | |
pheasant
Admin Group Joined: May 20 2006 Location: Florida Status: Offline Points: 9851 |
Post Options
Thanks(0)
Posted: December 03 2021 at 1:05pm |
The only thing we have to fear, is fear itself......FDR
|
|
pheasant
Admin Group Joined: May 20 2006 Location: Florida Status: Offline Points: 9851 |
Post Options
Thanks(0)
|
Omicron 3 times more likely to cause reinfection than previous COVID variants: researchersThe research has yet to be peer-reviewedBy Julia Musto | Fox News
Fox News Flash top headlines for December 3Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com. South African scientists say the risk of reinfection from the omicron COVID-19 variant is at least three times higher than for any previous variant. In the preliminary study, researchers looked at approximately 2.8 million positive coronavirus infections between March 2020 and Nov. 27, 2021, and 35,670 suspected reinfections were identified. From this retrospective analysis, the group said increases in primary infection were observed following the introduction of both the beta and delta variants, but no corresponding increase was observed in the reinfection hazard. NEW YORK CONFIRMS 5 CASES OF THE OMICRON CORONAVIRUS VARIANT Additionally, the estimated hazard ratio for reinfection versus primary infection was lower during COVID-19 waves driven by the beta and delta variants than for the first wave. "In contrast, the recent spread of the omicron variant has been associated with a decrease in the hazard of primary infection and an increase in reinfection hazard. The estimated hazard ratio for reinfection versus primary infection for the period from Nov. 1, 2021, to Nov. 27, 2021, versus wave 1 was 2.39," the authors wrote. Based on "population-level evidence," they concluded that the omicron mutation is "associated with substantial ability to evade immunity from prior infection." "In contrast, there is no population-wide epidemiological evidence of immune escape associated with the beta or delta variants," the study read, and the authors noted that "urgent questions remain regarding whether omicron is also able to evade vaccine-induced immunity and the potential implications of reduced immunity to infection on protection against severe disease and death." Other variants have been known to cause reinfection, and several patients reinfected with the beta variant were identified in Israel earlier this year. Juliet Pulliam, a South Africa-based epidemiologist and one of the study’s authors, tweeted Thursday that the researchers did not have information about the vaccination status of individuals in the data set and "therefore cannot make any assessment of whether omicron also evades vaccine-derived immunity." "Immune escape from prior infection, whether or not omicron can also evade vaccine-derived immunity, has important implications for public health globally, but there is still a lot we don’t know," she wrote. WHITE HOUSE SAYS DOMESTIC TRAVEL VACCINE REQUIREMENTS ON THE TABLE DUE TO OMICRON VARIANT Pulliam said the next steps include quantifying the extent of the variant of concern's immune escape for both natural and vaccine-derived immunity, as well as its transmissibility relative to other variants. "Data are also urgently needed on disease severity associated with omicron infection, including in individuals with a history of prior infection," she said. "Previous infection used to protect against delta and now with omicron it doesn’t seem to be the case," one of the researchers, Anne von Gottberg of the University of Witwatersrand, said at a World Health Organization briefing on Thursday. "We believe that vaccines will still, however, protect against severe disease," she said. The team's research was uploaded to a preprint server and has not yet been peer-reviewed. The researchers did not say what portion of the reinfections were confirmed as omicron cases — or whether they caused serious illness. The newest variant was discovered just over a week ago by scientists in South Africa and Botswana. Much remains unknown about the new variant, including whether it is more contagious, as some health authorities suspect, whether it makes people more seriously ill, and whether it can thwart the vaccine. At a White House COVID-19 response team briefing, Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky said Friday that omicron cases have been detected in around 40 countries. According to The Washington Post, South Africa’s National Institute for Communicable Diseases said Wednesday that omicron overtook other virus variants in November. CLICK HERE TO GET THE FOX NEWS APP New cases in South Africa have jumped from about 200 a day last month to more than 11,500 on Thursday. In the week since omicron was detected in the country’s most populous province, Gauteng, infections have surged 300%, Health Minister Joe Phaahla said Friday. The variant has also now spread to all eight other provinces, he added. Even with the rapid increase, infections are still below the 25,000 daily new cases that South Africa reported in the previous surge, in June and July. Only 6% of Africa's population has been fully vaccinated. The Associated Press contributed to this report. |
|
The only thing we have to fear, is fear itself......FDR
|
|
A-I
V.I.P. Member Joined: August 15 2021 Status: Offline Points: 4925 |
Post Options
Thanks(0)
|
"In contrast, the recent spread of the omicron variant has been associated with a decrease in the hazard of primary infection and an increase in reinfection hazard. The estimated hazard ratio for reinfection versus primary infection for the period from Nov. 1, 2021, to Nov. 27, 2021, versus wave 1 was 2.39" So you are less likely to get Omnicron if you have never had covid and more likely X2.39 to get it if you have had a prior infection. Interesting indeed. |
|
"Facts don't care about your feelings" I'M A UNVAXXED DEVIL so kiss my rebel ass.
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You can vote in polls in this forum |