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Corona: Why Delta makes herd immunity difficult

2021-07-21T18:47:44.146Z

The mutated coronavirus makes the situation much more difficult: a vaccination rate of up to 98 percent could be necessary for herd immunity. Experts are calling for rapid tests and masks to be retained permanently - also against the flu.



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Vaccination center in Dresden: In Saxony, the vaccination rate is the lowest in a national comparison

Photo: Sebastian Kahnert / dpa

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Source: spiegel

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