Epidemiologist offered suggestion to stop Covid-19 from spreading in hotels
Professor Tony Blakely said its unlikely virus is travelling through air condition
He explained it could be from temperature pressures from room and corridor
Professor Blakely said tweak is needed to stop two doors opening at same time
A woman in one Melbourne hotel caught the virus from another isolated family
Families in separate rooms at Park Royal Hotel test positive to mutant UK strain
Investigation launched to determine how the highly-infectious strain spread
New strain could be resistant to vaccines and able to evade the immune system
Possible it was transmitted through the air when one family opened its door
About 100 staff members have been sent home to isolate and get tested
Staff are tested at the facility daily and none have tested positive to virus to date