Baby_Hitler said:

Do we know yet how much a previous Omicron infection protects against the other variants? I'm guessing about as much as the reverse.

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Tripsurfer said:

Get ready for the next lockdown

Coffeeshops are essentials stores I hope. Planning on spacecaking my way trhough the Christmas holidays

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Reinfections per capital are occurring at essentially the same rate as infections in the general population in Denmark. 10% of all infections are reinfections and 10% of the population has had a confirmed case of covid during the pandemic. There appears to be no protection whatsoever if you’ve already had covid.


This article says the British put effectiveness of previous infection at 19%. Also hearing more about the severity profile being switched and younger people are more affected than older people.

https://www.cidrap.umn.edu/news-perspective/2021/12/uncertainty-swirls-around-omicron-covid-19-severity

Here’s the British data for immune escape

Quote:

We find strong evidence of immune evasion, both from natural infection, where the risk of reinfection is 5.41 (95% CI: 4.87-6.00) fold higher for Omicron than for Delta, and from vaccine-induced protection. Our VE estimates largely agree with those from UKHSA’s TNCC study (11) and predictions from predicting VE from neutralising antibody titres (4,14), suggesting very limited remaining protection against symptomatic infection afforded by two doses of AZ, low protection afforded by two doses of Pfizer, but moderate to high (55-80%) protection in people boosted with an mRNA vaccine.
Our estimate of the hazard ratio for reinfection relative to Delta also supports previous analysis of reinfection risk in South Africa (15). Prior to Omicron, the SIREN cohort study of UK healthcare workers estimated that SARS-CoV-2 infection gave 85% protection against reinfection over 6 months (16), or a relative risk of infection of 0.15 compared with those with no prior infection. Our hazard ratio estimate would suggest the relative risk of reinfection has risen to 0.81 [95%CI: 0.73-1.00] (i.e. remaining protection of 19% [95%CI: 0-27%]) against Omicron.
We find no evidence (for both risk of hospitalisation attendance and symptom status) of Omicron having different severity from Delta, though data on hospitalisations are still very limited.

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Koods, I hope Dr Campbell is right that hospitalizations and deaths are less because if there indeed like your article sggests is little difference and this thing clocks at R0 = 3-5, me oh my.

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I’m not buying it. This analysis of the hospitalizations seems really contrived. If exponential growth in hospitalization seen here continues the way cases have over the past week, they are going to surpass previous waves. I really don’t understand how people are looking at this and ignoring the trajectory. The distance between dots in the past few days is bigger than anywhere else on this graph, which means hospitalizations are growing faster.

koods said:

Quote:

Koods, I hope Dr Campbell is right that hospitalizations and deaths are less because if there indeed like your article sggests is little difference and this thing clocks at R0 = 3-5, me oh my.

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I’m not buying it. This analysis of the hospitalizations seems really contrived. If exponential growth in hospitalization seen here continues the way cases have over the past week, they are going to surpass previous waves. I really don’t understand how people are looking at this and ignoring the trajectory. The distance between dots in the past few days is bigger than anywhere else on this graph, which means hospitalizations are growing faster.

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koods said:

Baby_Hitler said:

Do we know yet how much a previous Omicron infection protects against the other variants? I'm guessing about as much as the reverse.

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If you don’t have any previous immunity, omicron isn’t going to do much to protect you from all the other strains. If you have had a previous infection or vaccine then omicron will broaden your immunity

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