The headline is completely speculative. The meat of the article is "A survey by Business New Zealand and Southern Cross Health found sick days hit a record high

The headline is completely speculative. The meat of the article is "A survey by Business New Zealand and Southern Cross Health found sick days hit a record high in 2022" and "Auckland University immunologist Anna Brooks said (...) we still don't know the broad spectrum impacts of [a novel virus infection]", which is very weak.