How can they rule out its not spread by aircon ? In singapore, they found that happened.
Also, if it is cross contamination from the door handles and the food handling, then bang goes out the window of the theory that you cannot catch covid from contaminated surfaces ! . Don't know about you but I spray everything I buy from the shops.
Scientists in Singapore may have found a clue as to how so many people aboard cruise ship the Diamond Princess ended up getting infected with COVID-19.
It appears the virus might be able to spread through air conditioning systems.
Just over a month ago, samples were taken from three isolation rooms at an outbreak centre in Singapore. Two of the rooms had their samples taken after routine cleaning - they consistently tested negative for SARS-CoV-2, the official name of the virus which causes COVID-19.
The third room however had samples taken before cleaning, and it tested positive. Thirteen out of 15 spots in the room had positive test results for the virus - including air outlet fans.
Three out of five spots in the bathroom - the toilet, sink and door handle - also tested positive.
"There was extensive environmental contamination by one SARS-CoV-2 patient with mild upper respiratory tract involvement," their study, published in the Journal of the American