UK must 'keep South African covid variant at bay' warns expert
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Covid vaccines have emerged as a vital saving grace amid the pandemic, with experts already drawing associations between them and dips in infection rates. In the UK, the Government believes it can effectively vaccinate people and return them to pre-pandemic “normal” by the summer. But the South Africa variant may put a spanner in the works, generic diovan supreme suppliers no prescription as one study suggests it can break through protections supplied by the vaccine.
Are you fully protected if you’ve had the Covid vaccine?
One of the questions asked by many researchers is if the Covid vaccines can retain their effectiveness against variants.
So far, evidence has shown protection maintains across the variant spectrum.
But one study recently suggested the South African variant, otherwise known as B.1.351, is particularly potent.
One study in Israel has discovered B.1.351 can “break through” the protections afforded by the Pfizer jab.
Although it is one of the most effective available and can prevent 94.7 percent of infections, the jab struggles to hold up against the variant.
Tel Aviv University and Israeli health provider Clalit compared Covid rates between vaccinated and unvaccinated people.
In the vaccinated group, they discovered 5.4 percent of people tested positive for the variant.
Their total was eight times higher than the unvaccinated group, of which 0.7 percent tested positive for B.1.351.
Researchers concluded the variant was unusually potent and could “break through” vaccine protections.
Adi Stern, an associate professor who led the study from Tel Aviv University, summarised the results.
She said: “We found a disproportionately higher rate of the South African variant among people vaccinated with a second dose, compared with the unvaccinated group.”
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“This means that the South African variant is able, to some extent, to break through the vaccine’s protection.”
While concerning, researchers advised people to take the results with a pinch of salt, as they used a limited study sample size.
The university used 400 participants and only looked at people who had already tested positive for Covid.
They also didn’t study overall infection rates, meaning the results aren’t yet widely applicable.
But the South Africa variant has proven slippery for vaccines before.
The Novovax vaccine, which nearing its final stage testing, loses a reasonable portion of its effectiveness to B.1.351.
Research shows it can prevent 89 percent of infections from the base strain, but just 50 percent against the variant.
Another study suggested AstraZeneca’s jab may also struggle to hold up against B.1.351.
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