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AFAIK, the SA variant* is more likely to render existing vaccines less effective, though there is actually little evidence to support that yet. There is also some evidence that it is more contagious and possibly a bit more lethal (but not any more so than the UK variant), but the real worry is the possibility of existing vaccines not working as well against it.@Joey D @Touring Mars , what's the up-to-speed on this South African variant? I briefly caught it on CNN as the segment ended, the headline said Dr. Fauci said it didn't look good. Is the vaccine not effective against it or is it far more deadly/contagious than other strains seen?
A cornerstone of UK (and other nations') COVID strategy is that banning or severely limiting international travel was largely unnecessary because the virus was already circulating within our borders anyway, so tougher border controls were not required. These new variants, however, are changing the story because although they may not produce much (if any) medically different affects than other variants that are already in the country, they may as well be a different virus as far as the vaccine is concerned, and hence new border controls are justified in trying to keep the spread of different variants down.
Fortunately, a UK-based company has already developed a new vaccine against the UK variant, which is supposedly 90% effective, and shows that development of targetted new vaccines can be done; but the wider issue of whether new strains and variants might render such 'local vaccines' less effective is still a problem, since it is hard enough (well, time consuming enough) to vaccinate a population against one strain, let alone multiple different strains.
Hopefully it will transpire that even the initial vaccines will still be effective enough against most or all new variants to the point where transmission chains are significantly disrupted, which in turn will give the virus less opportunity to produce new variants, but unfortunately I think it also means that public health measures like mask mandates, social distancing and bans on large gatherings may be with us for some time yet.
* Technically shouldn't really call it that; it's really "a variant that was first identified in SA", SA variant is more convenient to say.
Well, they know where they can stick those!Great news for those irritated by the nasal swab - China has started using anal swabs.
https://www.webmd.com/lung/news/20210128/china-using-anal-swabs-for-covid-testing
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