Coronavirus Pandemic (COVID-19) (SARS-CoV-2) [2020]

Reuters have reported that the AZ vaccine is actually quite effective against P1 in Brazil (as are all the others):

https://www.thepharmaletter.com/article/vaccines-seem-effective-against-brazilian-variant

Whatever the reason for the vaccine escape of the South African variant, it doesn't appear to be duplicated in Brazil. We do also now know that a stronger immune response takes place if the doses of the AZ vaccine are spaced out to 12 weeks. The trials in South Africa had the doses given with a 4 week spacing so you'd hope for slightly better numbers if this was increased to 12 weeks.

What we really need to know is how much the vaccines protect against severe illness against that variant. Theoretically, it ought to be a good amount, but the numbers are lacking at present.

I do wonder, when the 'boosters' become available, if we'll see a deliberate attempt to give a different vector to the original vaccinations. This would make sense, if the organisational ability is there.

A sidenote to the SA data...the 40% that got positive...had MUCH milder symptoms and MUCH less need for hospitalization.
The devil is in the details ;)
 
Reinfection is to be expected from Coronaviruses, as we well know, but why no analysis of the likelihood of becoming seriously ill the second time around?

This is what is never mentioned in these reports. If you are only likely to get mild symptoms the second time around, then it's a whole different ball game. You'd hope (and perhaps even expect) that the vast majority of later infections will be mild or even asymptomatic, at least when there is a broad enough level of immunity/protection in the population. If severity of confirmed reinfections are tracked, it might give us some sort of an indication of how long we will have to likely we're going to be intensively dealing with this pandemic. My guess would be that it will be a couple years at least of booster vaccines before we're confident enough that this will become a less dangerous illness. This is working on the assumption that long-term sterilising immunity won't be possible, but if it just becomes another circulating cold virus, then not so much of a problem.
 
Nasal spray treatment by a Canadian biotech shows promising results. Company is planning to apply for EUA in the UK and Canada:

SaNOtize, alongside Ashford and St Peter’s Hospitals NHS Foundation Trust and Berkshire and Surrey Pathology Services in the UK, have announced results of Phase II trials indicating that SaNOtize’s nasal spray represents a safe and powerful antiviral treatment that could prevent the transmission of Covid-19, shorten its duration, and reduce the severity of symptoms in those already infected.

In a randomised, double-blind, placebo-controlled Phase II trial that evaluated 79 confirmed cases of Covid-19, SaNOtize’s early treatment significantly decreased the level of SARS-CoV-2, including in patients with high viral loads infected by the concerning UK variant of Covid-19.

Patients treated with SaNOtize’s spray saw an average viral log reduction of 1.362 in the first 24 hours, which corresponds to a decline of around 95%. Within 72 hours the viral load plummeted by more than 99%. No adverse events were recorded in the UK trial nor in earlier Canadian trials that saw over 7,000 patients testing the self-administered treatment.

https://www.clinicaltrialsarena.com...educes-covid-19-viral-load-uk-clinical-trail/

The active ingredient is nitric oxide.

But note that it's only Phase 2 clinical data. However if it works, it might be an alternative to monoclonal antibodies, which require infusions with some trained personnel vs. self-administered nasal spray, for early treatment.

If it does successfully reduce viral load in the upper respiratory tract, it would also reduce transmission.
 
Are those measurements at Weeks 4, 6, 8, and 10 [beginning March 8th] of 2021 or projections for the months April, June, August, and October? I think it's the former, but wanted to make sure.
 
Interesting that there appears to be greater risk for women from this condition and also that the prevalence numbers don't appear to match up quite the same on this side of the channel.

We know that use of the contraceptive pill increases the risk of thrombosis, so I wonder if there could be some sort of link here? Alternatively, we know that women have stronger immune systems than men, so the increased risk could be down to too strong an immune response in a tiny minority of people?

If this was the case, we could end up just giving the AZ vaccine to men and older people, though for pretty much every age group, the risk of harm from the vaccine is a couple of orders of magnitude lower than from the virus itself.

I wonder if a similar signal will appear with the other adenovirus vaccines once enough doses of those have been administered?
 
Not sure if that's better or worse than FordAstra or Astroxford or Oxeneca...
 
If that german data is true, that would imply greater than 100 cases in the uk and 10s of deaths. Why have we not heard about this?, I mean of course boris would not try and suppress this news would he, after all he's such a lovely scamp with his scruffy hair
 
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