We already know that the Delta variant is much more transmissible, but Australian authorities are now warning that it no longer takes up to 15 minutes of contact to transmit the virus.
Health officials described a “frightening and fleeting” encounter where a stranger managed to infect another person by walking past them in a Sydney shopping center, according to ABC News.
Kerry Chant, NSW health manager, said: “They are clearly facing each other, but literally someone moving across from each other for a while, close, but momentary.
“We weren’t able to look at the exact same crossing point [in those two cases], but we know they were 20 meters away [apart], connecting to different places at the same time or in this area, so we think they crossed paths. “
Dr Chant also believes that two other people have been infected with COVID in the same way.
Griffth University virologist Lara Herrero told ABC that you have to be “so unlucky” to be infected in this way, and that the virus would have persisted in the air before the unfortunate woman inhaled it.
“But the data so far perhaps suggests that if it was the original strain, the Wuhan strain, it wouldn’t have spread so quickly,” she said.
“And the Alpha [strain] would have been less fortunate, but Delta certainly appears to be the most transmissible strain so far. ”