Here’s why it’s important to self-isolate as soon as you develop Covid symptoms

Friday, 20th November 2020, 12:24 pm
Updated Friday, 20th November 2020, 1:47 pm

People who are infected with coronavirus are most at risk of spreading the virus in the first week after symptoms appear, according to new research.

The findings reaffirm the importance of identifying new cases quickly, and getting them to self-isolate as soon as possible.

Analysis of people with Covid suggested that there was no live virus found in any of the samples collected nine days after symptoms began.

Highly infectious in first 5 days

By studying people infected with Covid - most of whom were admitted to hospital - researchers were able to measure a patient’s viral load (how much virus is in their system) and viral RNA shedding - the length of time a person sheds genetic material.

Scientists also looked at the virus itself, and how long it could survive sufficiently to replicate in a lab once it was isolated.

Their findings allowed the scientists to conclude that people with Covid are most likely to be highly infectious in the first five days after symptoms appear.

A need to raise public awareness

Lead author of the study, Dr Muge Cevik, said, “This is the first systematic review and meta-analysis that has comprehensively examined and compared viral load and shedding for… three human coronaviruses.

“It provides a clear explanation for why Sars-CoV-2 spreads more efficiently than Sars-CoV and Mers-CoV and is so much more difficult to contain.

