A public health specialist has allayed fears over the six-month expiry date of COVID-19 vaccines. The University of Cape Town's Dr Kerrin Begg says manufacturers have had only six month's data to work with. Once further data becomes available, the six-month window will be extended. She also says the AstraZeneca vaccine will cause no harm. But it would be unfortunate if it doesn't produce as much benefit as hoped for. Courtesy #DStv403
