“virus is spread by pre-symptomatics. That can be anybody.”
Very poor data for that. The better the contact tracing is done, the lower the percentage of asymptomatic (including pre-symptomatic) are found to be the cause. The best quality studies indicate 1% or less of transmissions are from people who haven’t started sneezing or running a fever.
I know of 4 couples where one person caught COVID, and then quarantined with their spouse for 10 days - and the spouse failed to catch it.
“I know of 4 couples where one person caught COVID, and then quarantined with their spouse for 10 days - and the spouse failed to catch it.”
We know of two couples, one guy is a DNA carrier/our son and the other guy adopted us.
Both guys were in great shape and this stuff hit them like a freight train.
Their wives didn’t get the crud and neither did their young kids and a 20 year old son our real DNA grand kid.
i’d argue the poor data point. We’ve known about pre-symptomatic contagion since mid-last year and I doubt it changed with a more muscular variant with a much higher viral load generation:
” transmission from asymptomatic individuals was estimated to account for more than half of all transmission.”
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774707
The 75% of SARS-CoV-2 transmissions in our cohort from case-patients in their presymptomatic phase exceeds reported transmission rates from other investigations (1,13,14). Possible reasons are the prior evidence that infectiousness peaks around the date of symptom onset, declining thereafter (15), and that case-patients probably reduced social contacts themselves once they experienced symptoms or when ordered to self-isolate. A large proportion of cases with presymptomatic transmission in our cluster is further supported by the median serial interval of 3 days.
https://wwwnc.cdc.gov/eid/article/27/4/20-4576_article
“Up to 50% of people who had COVID-19 in Iceland were asymptomatic after health officials did broad lab testing of the population there.
Nearly 40% of children ages 6 to 13 tested positive for COVID-19, but were asymptomatic, according to just published research from the Duke University BRAVE Kids study. While the children had no symptoms of COVID-19, they had the same viral load of SARS-CoV-2 in their nasal areas, meaning that asymptomatic children had the same capacity to spread the virus compared to others who had symptoms of COVID-19.”
https://www.uchealth.org/today/the-truth-about-asymptomatic-spread-of-covid-19/
(the above UC quote I included because it contained the, high viral load in nostrils, phrase which is the exact same argument being used by unvaccinated who point to only vaccinated as carriers/infectors)