People with coronavirus are symptom-free for an average of five days – almost twice as long as the common cold, according to new research.It would put colleagues or classmates at risk for a full working week – before a carrier was even aware they had the bug.
Infected individuals should expect to begin feeling unwell “within 12 days” – although in rare cases the incubation period can last longer.The findings support current recommendations to isolate those who may have been exposed to COVID-19 for two weeks.
Study senior author professor Justin Lessler, an epidemiologist at Johns Hopkins University in the US, said: “Based on our analysis of publicly available data, the current recommendation of 14 days for active monitoring or quarantine is reasonable.”
But he added: “With that period some cases would be missed over the long-term.”
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