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COVID-19: Symptoms, tests, & vaccine development quiz

1. Of the following, which of the reasons has been given by the World Health Organisation (WHO) as to why individuals who’ve recovered were testing positive (false positives)? *This question is required.
2. Which of the following symptoms were largely reported in individuals who tested positive for the virus, but was only recently acknowledged as an official diagnostic symptom of COVID-19 by the CDC? *This question is required.
3. 'A large percentage of individuals who contract COVID-19 are asymptomatic.'
Is this statement True or False? *This question is required.
4. Of the following, which two are the names of the vaccines which are being tested in India for COVID-19? *This question is required.
5. Below are a list of drugs being used to treat individuals with COVID-19 along with their mechanism of action. Of these, which is the drug incorrectly matched with its mechanism of action? *This question is required.