2021-12-30 General

Mitigation Measures This article says that people can now apply for the federal Canada Worker Lockdown Benefit of up to $300/week, retroactive to 19 Dec. Variants This report from Ontario Public Health says that, after adjusting for vaccination status, the risk of severe illness from Omicron is 54% that from Delta. This preprint (from August)… Continue reading 2021-12-30 General

2021-12-29 General

Variants There continue to be studies in test tubes and lab rodents which all show pretty convincingly that Omicron does not infect the lungs as well as previous versions. This preprint says that T cells from vaccination still have 70-80% of their protection against Omicron (which is probably why breakthrough cases are mild). Transmission This… Continue reading 2021-12-29 General

2021-12-25/26/27/28 General

Variants There has been difficulty figuring out how badly Omicron is going to hit the hospital system first because it is a lagging indicator, second because Omicron affects vaccinated and unvaccinated people so differently, and third because of poor-quality data around the holidays. Still, there are hints that, as this tweet from New York says,… Continue reading 2021-12-25/26/27/28 General

2021-12-23 General

Variants I have been frustrated with some of the talk around Omicron’s virulence, and this tweet made me realize what my problem was: we shouldn’t be talking about THE virulence (usually expressed as the Case Hospitalization Rate or CHR) as a single number. There is a different CHR for the general population (the observed virulence)… Continue reading 2021-12-23 General

2021-12-21 General

Variants More qualified good news: this preprint out of South Africa says that Omicron is only 70% as likely to send someone to the hospital as Delta. All the same caveats I’ve made previously apply, though. This Twitter thread does an estimate of the Case Hospitalization Rate (CHR) in New South Wales, Australia. This is… Continue reading 2021-12-21 General

2021-12-17 General

I remember thinking it was really strange that more people died in the second year of the Spanish Flu pandemic than the first. I’m not surprised any more. Vaccines Someone asked me today, “would Omicron still have arisen if we’d had equitable and effective vaccine distribution globally? At first I hedged, and said we couldn’t… Continue reading 2021-12-17 General