There are a bunch of people in Brazil that still doesn't trust the CoronaVac (China). This got worse after some tests revealed that it's efficacy against the COVID is close to 50%. Still, the brazilian institute that is working with China says that it's safe and it works after two doses. I don't know, I think I trust the Oxford (India) the most.

I remember the news in Brazil saying that the Sputnik V was one of the most efficient against the virus, but it requires to be stored at really cold temperatures to maintain the efficacy.

Brazil has almost 240.000 deaths and close to 10.000.000 confirmed cases, so I hope the vaccines help us to recover, it doesn't matter where it comes from.

I would hope the companies could forfeit their patents for COVID-vaccines. This would be very helpful for developing countries and that in turn for everyone.

The Oxford vaccine becomes the second after Pfizer's to be approved by the World Health Organization:

https://www.abc.net.au/news/2021-02-16/who-approves-astrazeneca-covid-vaccine-emergency-use/13158024

This will allow millions of doses to be delivered to developing nations through the UN's Covax initiative.

Oxford's shot has also just been approved for use here in Australia:

https://www.abc.net.au/news/2021-02-16/coronavirus-astrazeneca-vaccine-approved-for-use-in-australia/13115784

We've secured permission to produce this one locally, here in my home city of Melbourne, so that we don't have to rely too heavily on imports.

WHO approved vaccines are the ones with Chinese microchips in them, right?

I'm one hundred percent sure that would be the case. Take polio, for instance. On the surface, a common enterovirus. It didn't trouble children and young adults until sanitation began to improve in the 19th century and viral exposure diminished. Then it became a true epidemic as opposed to a weird disease some older people would get.

I've seen some people wanting a future where masks and social distancing are common so they don't get sick, but that could end up easily breeding a dozen Covids out of current harmless or rare viruses.

Everything you just said would have happened far more easily in the wild. Coronaviruses are fairly common in many animals and managed to make the jump to humans and cause pandemics before. Like I mentioned before, people have contact with bats, etc. in Southeastern Asia by the hundreds of thousands. It would just take one chance mutation.

As far as I know, China has one single-dose adenovirus vector vaccine and the rest of China's and India's so far are inactivated vaccines.

It looks like inactivated vaccines land between single-dose (which won't even divulge their efficacy against mild cases) and two-dose vector vaccines, with the added benefit of using the entire virus and, in theory, being less affected by variants with spike mutations.

Easier to adapt too; back then, it took just a few months for inactivated vaccines to be modified for the Asian and Hong Kong flu pandemics.

The over-80s now have the most detectable antibodies compared to other groups in England.

BioNTech/Pfizer vaccine is less potent against South African variant

Covid-19 jab still works but produces only a third of the antibodies it did for original virus, study finds

Edit: the above is needlessly alarming. Please ignore. Read this instead

Pfizer says South African variant could significantly reduce protective antibodies

(This February 17 story corrects headline and first paragraph to show the reduction was in the protective antibodies elicited by the vaccine, not the protection of the vaccine overall)

This would be production of antibody titers. The antibodies were already there in the blood samples, after all.

Very good numbers overall. Even if it's not enough to outright grant sterilizing immunity, better and more spike-targeting antibodies should promptly be produced by T-cells by way of affinity maturation as soon as cythopathic effects are detected by the immune system.

(fun fact, antibody titers are counted in the geometric or logarithmic scale; people recovering from a natural Covid infection have neutralising antibody titer levels varying from 160 to a whopping 12,400 times depending on the analysis method)

OT - of course, to be protected you need to be sure you are vaccinated to begin with. We have multiple reports going about of the elderly being merely poked or even injected air by healthcare workers instead of being given the vaccine. I honestly would consider this attempted murder, if not by Covid, by the air being injected and potentially causing embolism.

Thanks for clarify, I was going through the headlines only yesterday as I was commuting and copy pasted the financial time headline, a better, more comprehensive article is now included in my previous post.