I summarised this latest article from the WHO for my workmates.
COVID-19 is transmitted by:
- Droplets coughed or sneezed out
- Close contact – within 1m
Incubation period (Time from exposure to symptoms developing) = Pre-symptomatic period is average 5-6 days, but could be as long as 14 days (hence self-isolation period of 14 days recommended by MOH)
Pre-symptomatic transmission possible but person would be coughing or sneezing to produce droplets, and contaminating their surface surroundings.
Non-Medical masks (Do It Yourself), e.g. cotton masks, no current evidence to support or not support use. One study of health care workers using cotton masks showed that they were at increased risk of infection compared to those who wore medical masks.
Should be reserved for health care workers.
Masks by themselves – Not adequate protection. Continue reading