Until we have antibody tests, the PCR-based tests we're using will only tell us if you actively have the disease not if you had it ages ago and already recovered. This disease could have easily spread unnoticed (due to the overwhelmingly mild flulike symptoms most people get) for months. Due to its highly-contageous nature, it probably did.
Until we calm down and analyze what all actually happened my guess is just as good as anyone else.
It almost certainly jumped hosts to humans in November of 2019[1]. It has not been circulating in humans for long.
Indeed, several scientific publications have come out in the past decade that more or less predicted that a similar strain of SARS would jump hosts and become a pandemic disease[2].
Also, technically the Spanish Flu was just a bad flu season, right? Now, few believe now that Covid-19 will be nearly as bad as the 1918 pandemic (at least in its current mutation), but it will almost certainly worse than the 1957 flu pandemic, which was bad enough and which resulted in many governmental edicts similar to today, with many school and library closings.
I agree we need to keep cool and not overreact or panic, but we also need to take this thing very seriously. Even the experts are trying to figure this thing out. Disease modeling has come a long way since 1918, but modelers are not seers.
1. https://www.statnews.com/2020/01/24/dna-sleuths-read-coronav...
2. https://www.nature.com/articles/nm.3985
3. https://www.encyclopedia.com/media/educational-magazines/inf...
Also I am 32yo male on day 5 of Covid-19 symptoms and have hopefully been through the worst part (immune response in lungs). AMA.
I have a suspicion that I may have had it even longer than a week in advance and it spread more in the lungs than normal.
today is a 2.5
it kind of sucks, do your best to avoid it.
Nonsense! Unless we can count every death caused by the virus, and correctly diagnose every infection, then this is a ridiculous (and irresponsible) guess. The number for "all cases" comes from the CCDC paper:
> A total of 72,314 patient records—44,672 (61.8%) confirmed cases, 16,186 (22.4%) suspected cases, 10,567 (14.6%) clinically diagnosed cases (Hubei Province only), and 889 asymptomatic cases (1.2%)—contributed data for the analysis.
Another more recent study guesses that 86% of cases are asymptomatic and/or otherwise undocumented:
https://science.sciencemag.org/content/early/2020/03/13/scie...