)
Understanding transmission of COVID-19: US study confirms threat of silent carriers
Patients infected with COVID-19 can transmit the deadly virus one to three days before showing symptoms of the disease. According to the latest study published by US centers for disease control and prevention. Watch report:
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)