https://www.bostonglobe.com/2020/11/24/nation/what-does-it-mean-when-youve-got-covid-19-you-dont-know-where-or-how/?p1=Article_Feed_ContentQuery, another study found that in household transmissions individuals with symptoms were more than 25 times more likely to infect household members than those without symptoms at the time (https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774102; https://www.thecollegefix.com/bulletin-board/university-researchers-find-almost-no-covid-19-transmission-without-symptoms-in-households/) And the rate of transmission that has occurred outdoors seems to be below 1 percent and may be below 0.1 percent. (https://www.nytimes.com/2021/05/11/briefing/outdoor-covid-transmission-cdc-number.html)
Closing parks, forest trails, beaches etc. and exhorting "shelter in place" and requiring masking whenever outside is not only unwarranted but fostered/fosters lack of exercise and increased weight, and often contributes to being hypertensive[8] and having high cholesterol, all of which are primary factors in Covid-19 deaths,[9] besides having compromised immune systems as with the aged, especially in seclusion. Also, a NIH study of 2015 found that being inside with increased CO2 levels significantly degraded cognitive function.[10]
"A person from that apartment block went to to the MCG (Melbourne Cricket Ground), Melbourne's major sporting stadium where he watched a football match with about 80,000 people - as I say, this was at a time when we pretty open so they were allowing crowd at football matches. From there, teachers at two different schools (one of which is literally next door to the school I teach at) started infecting students and staff in their school."
I see this case of tracking of "patient zeros" to be dubious in its conclusions.
I can't read the article - it's behind a paywall from my perspective, but it looks nearly a year old and I can't see any sign it relates to the Australian context. I suspect transmission figures are very different in the US from Australia because the US has had so many more cases.
I see this case of tracking of "patient zeros" to be dubious in its conclusions.
I don't. Our numbers are low enough here that I see no reason to doubt they can do this. They don't always succeed but the traces I've seen make complete sense to me.