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New COVID variants can evade vaccine protections

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Variants of the COVID virus continue to challenge scientists
The recent evolution of the virus is markedly different to what we saw earlier in the pandemic. Source: Getty / BlackJack3D

The new omicron variants BA.4 and BA.5, which appear to have milder symptoms than the alpha and delta, are still a source of concern.

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By Omoh Bello

Source: SBS News

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The new omicron variants BA.4 and BA.5, which appear to have milder symptoms than the alpha and delta, are still a source of concern.

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