2021-10-23/24/25 General

Transmission In this small study of Italian health-care workers who were tested regularly, all of the people who tested positive but were asymptomatic tested negative the very next day. The mean time for the symptomatic patients to test negative was 11 days. Pathology This preprint says they found SARS-CoV-2 antibodies in the cerebrospinal fluid of… Continue reading 2021-10-23/24/25 General

2021-09-23 General

Vaccines This long and highly technical preprint also says that the MMR vaccine gives some protection against and that the Tdap (Tetanus, diphtheria, and pertussis) vaccine does. The authors did two things: They took T cells from blood which had SARS-CoV-2 antibodies (either from infection or vaccination) and added either MMR or Tdap vaccines, and… Continue reading 2021-09-23 General

2021-09-21 General

Mitigation Measures The land border into the USA from Canada will remain closed to non-essential non-Americans until at least 21 October. Vaccines This preprint says that the MMR (measles, mumps, and rubella) vaccine has a vaccine effectiveness against symptomatic COVID-19 infection of 48% and 76% effectiveness against severe disease. I think this is huge news,… Continue reading 2021-09-21 General

2021-06-12 General

Vaccines This paper says that women have a more robust response to vaccination than men do. On 18 May, I talked about how live attenuated virus vaccines seem to rev up the innate immune system. I mentioned in that post that a smallpox vaccination reduced all-cause mortality more than attributable to smallpox deaths; I had… Continue reading 2021-06-12 General

2021-05-24 General

Diagnostics Dear Readers, go get yourself a pulse oximeter. A study showed that frequently people with COVID wait until they are short of breath to go to hospital. Unfortunately, with COVID, frequently you feel like you can breathe fine, but your blood oxygen actually is quite low. If your pulse oximeter is reading low and… Continue reading 2021-05-24 General

2021-05-19 General

Disease This preprint found that patients with COVID-19 made a bunch of antibodies which attacked their own innate immune system. Putting those antibodies into mice with a human ACE2 receptor made them more susceptible to COVID-19. Remember yesterday, how I talked at length about how live attenuated virus vaccines (LAVs) appear to rev up the… Continue reading 2021-05-19 General