Coronavirus good news thread

Vaccine booked for tomorrow. Got really lucky with the dates. Tried this morning and they could only offer me Fridays at the end of the month. Not suitable for me so tried again this afternoon and got an appointment in acklam tomorrow morning.
 
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Had my second at my GPs at the weekend. No queue straight in, few q's, sat down, jabbed and out.
Doubt it even took 2 minutes.
Nowt but a sore arm afterwards.
 
Now a bit of good/bad news, depends how you want to look at it.
2 deaths reported involving vaccines have been declared on death certs to the ONS. They were not the direct cause of death which is good news.

30m doses given, seems like justified risk to me.
 

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A new study shows that immunity from a naturally-acquired Covid-19 infection can last for up to a year and is significantly boosted by a subsequent vaccination.

Vaccination boosts naturally enhanced neutralizing breadth to SARS-CoV-2 one year after infection

Extracts from the paper:

neutralizing [antibody] titers remain relatively unchanged between 6 to 12 months after SARS-CoV-2 infection, and [...] vaccination further boosts this activity by nearly 50-fold.

In the absence of vaccination, the number of RBD specific memory B cells present at 12 months was only 1.35-fold lower than the earlier timepoint (p= 0.027, Fig. 2b). In contrast and consistent with previous reports, convalescent individuals that received mRNA vaccines showed an average 8.6-fold increase. in the number of circulating RBD specific memory B cells.
 
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Novavax's two-dose COVID-19 vaccine had an overall efficacy of 90%, with 100% efficacy against moderate and severe disease, the manufacturer announced on Monday.

Another highly effective Covid vaccine

In a bit of, "it almost seems too good to be true" news, the manufacturer's announcement gives preliminary data that it may be even more effective against variants of concern:

An exploratory analysis involving sequenced cases of variants of concern or interest -- 38 in the placebo group and six in the vaccine group -- demonstrated a vaccine efficacy of 93.2%.
 
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An interesting side-note perhaps (at least I find this kind of stuff fascinating) is that this vaccine uses a different technology to any of the currently authorised vaccines - it's a prefusion, protein nano-particle sub-unit vaccine construct.

It seems to be another indication that using the prefusion form of the spike protein may give better results than the postfusion form.

According to the research, the SARS-CoV-2 spike protein changes shape after it attaches to a human host cell.

For instance, the Pfizer-BioNTech and Moderna vaccines also use the prefusion form, while the Oxford-AstraZeneca vaccine uses the postfusion form.

As the article below points out, this makes sense - you want the antibodies and cytotoxic T cells to attack the virus before it infects the host cell, not after.

The tiny tweak behind COVID-19 vaccines
 
Another drug to add to the weaponry, confirmed by the U.K. based Recovery trial.


‘It found that the antibody therapy reduced by a fifth the 28-day mortality of people admitted to hospital with COVID-19 whose immune system had not mounted an antibody response’

‘The treatment also shortened the hospital stay of those who were seronegative and reduced their chances of needing a mechanical ventilator, Landray said.’

"This is the first time we've got one that's actually targeting the virus itself," Landray said, adding that it could be used along with the other treatments.

"It's not that you do one thing or another thing. These benefits are additive in these patients," he said.



 
Another drug to add to the weaponry, confirmed by the U.K. based Recovery trial.


‘It found that the antibody therapy reduced by a fifth the 28-day mortality of people admitted to hospital with COVID-19 whose immune system had not mounted an antibody response’

‘The treatment also shortened the hospital stay of those who were seronegative and reduced their chances of needing a mechanical ventilator, Landray said.’

"This is the first time we've got one that's actually targeting the virus itself," Landray said, adding that it could be used along with the other treatments.

"It's not that you do one thing or another thing. These benefits are additive in these patients," he said.



Listening to a researcher this morning, it isn't normal to measure patients' antibody response on admission with covid. The death rate of those with no antibody response is double that of those that have some antibody response. This seems to be an important marker that will presumably become a normal test in future.
 
Another treatment looking like it might be very useful, especially given it is a pill so easy to administer -

‘Molnupiravir is the first oral direct-acting antiviral shown to be “highly effective” at reducing nasopharyngeal SARS-CoV-2 infectious virus and viral genetic material, the researchers at the University of North Carolina and Chapel Hill and Ridgeback Biotherapeutics said in their paper.’

‘Among 202 participants involved in the clinical trial, virus isolation was significantly lower among participants who received 800mg molnupiravir compared with participants who received a placebo used in drug trials to measure effect of experimental therapies. On day 5, the virus was not isolated from any participant who had received 400mg or 800mg molunpiravir — which essentially means they tested negative — compared with 11 per cent of those who had received the placebo.’

The more treatments we can find, the quicker we can open up fully and still have the ability to treat vaccine breakthrough infections, and the unvaccinated.




 
Novavax phase 3 data released and its good news. Another vaccine soon to be added to the arsenal, and this one produced locally 👍

‘The final analysis confirmed an overall efficacy of 89.7% with over 60% (half) of the cases caused by the B.1.1.7 (Alpha) variant, and a 96.4% efficacy against non-B.1.1.7 (non-Alpha) variants which represents strains most similar to the original virus. ‘

‘We continue to be very encouraged by data showing high levels of efficacy against even mild disease, and that NVX-CoV2373 offers strong cross-protection against both the B.1.1.7 (Alpha) variant and non-B.1.1.7 (non-Alpha) variant strains which are widely circulating," said Gregory M. Glenn, M.D., President of Research and Development, Novavax.’

 
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