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DW-Science reporter Derrick Williams explains there's no precise data on the number of asymptomatic COVID cases. One problem is the highly infectious Omicron variant - people might not even notice they have it, but can still pass it on to others
DW science correspondent Derrick Williams answers the question: how long should a person wait after having COVID-19 to get vaccinated in order to boost their immunity?
DW science correspondent Derrick Williams has been keeping you informed of latest developments during the pandemic. This time he answers the viewer question: does the Delta variant still exist or was it eliminated by the Omicron variant?
DW science correspondent Derrick Williams keeps you up to date with the latest research and facts. This time he answers the question: Could SARS-CoV-2 be modified into a "light" version of the virus that's more harmless?
DW science correspondent Derrick Williams has been monitoring the pandemic since it began. He's looked at whether individuals can protect themselves against COVID-19 even if others are no longer being careful.