Quick test reveals past infection and immunity for COVID-19 | Coronavirus | 9 News Australia

There are some people who have contracted COVID-19 multiple times throughout the pandemic, while others never tested positive once. This quick test uncovers the truth about past infections and immunity in those who tested positive and those who didn’t. Subscribe and 🔔: http://9Soci.al/KM6e50GjSK9 | Get more breaking news at 9News.com.au: http://9Soci.al/iyCO50GjSK6

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