week ending 2022-06-23 General

Sorry this was late. Life happened. Pathology This article summarizes this paper which says that the chances of bad COVID outcomes are cumulative with exposures. Getting COVID-19 twice is worse than once, three times is worse than two, etc. (Here’s a blog post which talks about this paper more.) As you can see, you are… Continue reading week ending 2022-06-23 General

week ending 2022-06-16 General

Long COVID This article about Long COVID in the US is interesting. It says that a lot of the indicators which you would expect to see Long COVID shift (e.g. number of disability claims, health care expenditures), have not in fact shifted. The article gives a number of possiblities: A lot of disabled people died… Continue reading week ending 2022-06-16 General

week ending 2022-05-19 General

Testing This paper found that dogs could be trained to recognize COVID-19 patients by smelling skin swabs with an accuracy of over 90%. This report says that: The percentage of all Canadian blood donors who have been infected with COVID-19 was about 28.7%, with 44.3% among the 17-24-year-olds. 99.57% of Canadian donors had evidence of… Continue reading week ending 2022-05-19 General

Week ending 2022-04-14 General

Because the rest of the world has decided that COVID doesn’t exist any more, I am dropping down to one post per week. I am going to stop posting articles which are repetitive, especially ones of the form “Oh look! {Vaccines, boosters, treatments} still work against {Omicron, older variants}”; “Oh look! Vaccines wane in effectiveness!”;… Continue reading Week ending 2022-04-14 General

2022-03-23 General

Testing This article says that COVID-19 in wastewater is going up in many places across Canada. Mitigation Measures This article reports on an Italian study which found that better ventilation reduced COVID-19 cases dramatically in schools. Replacing classroom air 2.4 times an hour gave a 40 percent reduction in infections; 4 times an hour gave… Continue reading 2022-03-23 General

2022-03-10 General

Mitigation Measures This paper reports on a big study in the US which compared school districts which had mask mandates with those that did not. For every 100 community-acquired cases, districts with universal mask mandates had 7.3 infections, while districts with optionally masks had 26.4. Don’t let anybody tell you that masks don’t work Testing… Continue reading 2022-03-10 General

2022-03-03 General

Vaccines You might be wondering what the holdup is with shots for toddlers and babies. After all, the Pfizer shots were effective (during the Delta regime) for the under-two babies, just not for the toddlers (presumably because the dose:weight ratio was high enough for the babies but not the toddlers). This article about the approval… Continue reading 2022-03-03 General

2022-02-24 General

Vaccines This article reports that Health Canada approved Medicago’s Covifenz, a plant-derived protein subunit vaccine. In trials, Covifenz had 71% effectiveness against Delta infection, and 100% effective against hospitalization. According to their product monograph, it is fridge-stable, but needs to be handled gently. Medicago’s vax is a virus-like particle, what I generally call a “spikey… Continue reading 2022-02-24 General