If you’re vaccinated against COVID-19, how protected are you from catching the virus? | ABC News

With the Delta strain spreading, there are reports that the efficacy of the vaccines is declining. Countries like the UK, USA and Israel are reopening and cases numbers are surging.

The question is now whether the Pfizer, Astra-Zeneca, Moderna and Johnson & Johnson vaccines are ready for this onslaught and can they stop another wave of hospitalisation and death?

Jeremy Fernandez explains.

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