[ElViajero]

I got CoVid in Osaka at the beginning of November 2019. The symptoms lasted around 5 months. I got it again in May 2021 and this time I was fully recovered in 3 weeks.

I got vaccinated, even during the second infection I felt extremely tired and slightly confused, I want to minimize as much as possible the risk of repeating again.

update: For all the down-votes. Time will say. But "A new study shows that first cases of coronavirus infections could have appeared in China between October and mid-November 2019". It fits with my experience. https://www.dw.com/en/covid-study-cases-spread-in-china-earl...

update 2: I arrived to Osaka Airport (KIX) on 9th November, I had symptoms 3 days later.

update 3: Stop down-voting the people that says that it is impossible. It may be the case, I am just sharing my personal experience in case it clicks somewhere. I can be wrong and it could have been a virus with very similar symptoms. I didn't wanted to start a war of up votes and down votes, that adds nothing to the discussion.

[gpm]

> in Osaka at the beginning of November 2019

On what basis do you believe this was covid-19 and not some other disease?

[ElViajero]

I had the same symptoms that I had the second time. The second time was confirmed by PCR-test.

But, of course, it could have been an equivalent disease with the same symptoms: fever, mental-fog, sore-throat.

It is just the timing, the fact that Osaka is visited by many Chinese nationals and the feeling was so similar that makes me quite sure that it was covid-19.

[dtech]

Those are symptoms of literally every airway infection known to man. Is is much, much, much more likely you had a flu/heavy cold instead of having Covid 1 month before the first public Chinese cases and 3 months before first European cases

[gpm]

Also that if the first disease wasn't covid, getting covid the second time around isn't that unlikely, but if the first disease was covid, getting covid again was shockingly unlikely (not impossible) because of the degree of immunity granted by the first infection.

[ping_pong]

I'm sorry but Covid wasn't in Osaka in November 2019. You definitely had some other disease like the flu.

[c6401]

Given it was in the US at least in December 2019 if not earlier according to the NIH retrospective serology study it doesn't seem to be completely impossible. https://www.nih.gov/news-events/news-releases/nih-study-offe... Also similar Italian serology study by National Cancer Institute showed that sars-cov-2 was circulating in Italy as early as September 2019. https://www.reuters.com/article/us-health-coronavirus-italy-...

[ping_pong]

No. It's impossible. There was no outbreak in Osaka. A disease as virulent as Covid with only a single person infected is not likely at all.

[jjeaff]

Do you happen to work in a biolab? How do you know you had covid in November 2019? The first known cases in Japan aren't until January 2020. And the first reported case in China is November 2019.

[DeRock]

> I got CoVid in Osaka at the beginning of November 2019.

Impossible, cases did not appear in Wuhan until mid-late November. You must have had some other flu/virus.

[ElViajero]

Maybe you are right and it was something else. But, it was very similar and the timing is quite close.

I just feel to share it if it may help someone to build a timeline. And, as I have said in another comment, Osaka has many many Chinese visitors and I was in a very busy airport. I doubt that it took a lot of time to jump from China to other Asian countries.

[andy_ppp]

Yes there’s a small chance of it being COVID then, was there an Osaka-Wuhan direct flight!

[andy_ppp]

I don’t think it’s impossible, unlikely given current information. Of course that information can change…

[outworlder]

Impossible is a very strong word, there are samples of people from months before covid was identified in Wuhan that are under investigation. Not specifically in Japan, but it can't be ruled out with the current information.