Researchers detected higher viral loads in patients in the first week after symptoms appeared. Photo: AP
Researchers detected higher viral loads in patients in the first week after symptoms appeared. Photo: AP

Coronavirus patients may be most infectious in first week of symptoms, study finds

  • Researchers find viral load highest in first seven days after patients start showing signs of the disease
  • Self-collected saliva samples could be safer than throat and nasal swabs taken by medical professionals, they say

Researchers detected higher viral loads in patients in the first week after symptoms appeared. Photo: AP
Researchers detected higher viral loads in patients in the first week after symptoms appeared. Photo: AP
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