Study: Lambda variant weakens post-vaccination protection – Human – Science and technology

The lambda coronavirus variant that has spread from Latin America is not only more contagious but also more resistant to antibodies, which means that vaccination against it is less effective.

This follows from a recent study by Japanese scientists, the results of which were reported by Deutsche Welle (DW) on its website.

The researchers found that the lambda variant, first discovered in Peru in August 2020, carries three troubling mutations. One of them in the so-called spike protein causes the antibodies to be unable to neutralize the virus sufficiently and thus practically avoids the body’s immune response. As a result, vaccinated individuals and those who have already overcome COVID-19 are less well protected from infection. The other two mutations result in people becoming more infected with the lambda variant.

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The results of this as yet unreviewed laboratory study have yet to be independently verified. Currently, the lambda variant has already been confirmed in about 30 countries, especially in South America, but there have also been isolated cases in Europe, such as Spain, Britain, Italy and Germany.

The World Health Organization (WHO) currently ranks lambda among the so-called “variants of interest” to be pursued. This means that outbreaks are being reported or are occurring in more than one country.

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However, in the opinion of Japanese scientists, this variant fulfills all the preconditions for it to be included in the list of “worrying variants”. These are demonstrably more contagious and lead to a more severe course of COVID-19; these include, for example, the delta variant, which spread from India. It is rather unlikely that lambda would be able to assert itself against the dominant variant of delta in the meantime, writes DW.


Source: Pravda.sk – Veda a technika by vat.pravda.sk.

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