Effects of coronavirus on professional races

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¿False positive? The test looks for the specific genetic material of the virus. It's perfectly possible to test positive and have no symptoms of illness. And it's normal to test positive on a day and negative one week after. All this has been known for months.
I'm torn between the reports of Hospitals and Medicine Schools and those of Cycling News :rolleyes:
Yesterday a Bora rider tested positive, forcing the team to withdraw from the Bretagne Classic, then tested negative just hours later. Statement from Bora "It is reasonable to conclude that this was a false positive test result."

You say it's normal to test positive one day and negative one week after, but hours later? And he tested negative in the days before the race. The testing system needs to be changed (A and B samples?) before the Tour starts.
 
well, not "hours later", Gatto's test was from three days before the race. Those PCR tests are very sensitive, and maybe one test was just under, the other just above the threshold.

In general, it doesn't seem to be a major problem at least, given that there have been at least 500 tests per race so far. But of course, if logistacally possible, a re-test for confirmation on the Tour rest days would be good.
 
Yesterday a Bora rider tested positive, forcing the team to withdraw from the Bretagne Classic, then tested negative just hours later. Statement from Bora "It is reasonable to conclude that this was a false positive test result."

You say it's normal to test positive one day and negative one week after, but hours later? And he tested negative in the days before the race. The testing system needs to be changed (A and B samples?) before the Tour starts.
The accuracy of the PCR test is at best 80%, 7 days after infection and lower than that the further away you go from that reference date either before or after. There's still that 20% of false negatives at best, so it's not impossible to test positive and negative on different samples taken a few hours apart.

This is a contagious disease that sets a threat to the general public health. It has nothing to do with the old doping problem that only affects the health of the involved individual, so it has been historically treated as a private issue within the sport.

This virus pandemics requires a different mindset regarding test results interpretation and protocols. The tests we have are inaccurate, and we have to deal with it. According to the experts, and based on the tests accuracy, you can believe positive tests, but you have to question negative tests.

The testing system needs to be changed accordingly. After a positive test, several negative tests on different days should be required to get back to work.

The statement from Bora is the statement of a bunch of people who think they're still doing business as usual: believe the negative tests and question the positive ones.
 
The standard practice worldwide is for two consecutive negative tests after testing positive - The time taken to get the two negatives will be dependent on whether you are asymptomatic or symptomatic - So probably 7 to 14 days would be around the average.
 
Reactions: ice&fire
If the sensitivity of the test is 80 %, the specificity is 99.9 %, 0.1 % of the population is currently infected, a random individual of the population in question is tested twice (where the two tests are independent and on the same day), one test is positive and the other negative, then the likelihood that the individual in question is infected is 13.8 %.

Now under the same conditions, but where 1 % of the population is currently infected, the likelihood that the individual in question is infected is 61.8 %.
 
So two staff members at Lotto-Soudal had a "non-negative" test and were sent home, along with their two roommates.

There's remarkably little unrest about it. Maybe people are tired of discussing corona. On the one hand I'm excited as any cycling fan about the Tour, on the other hand I think it's insane. I'm not at all confident that they will reach Paris. The attitude seems to be that the Tour must go on no matter what. Nice and Paris are currently red zones...
 
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In German radio there just was a short report on how dangerous the whole thing is. France had ~7000 new positives the last day (although that number doesnt say much without absolute number of tests, thats about 7 times as high as in Germany and people/government are worrying here...), Nice and Paris being red zones, and they allow 5000 fans in start/finish.
Happy as anyone to watch the Tour, but thats not right, should have it without Fans at the road.
 
Reactions: Pantani_lives
In German radio there just was a short report on how dangerous the whole thing is. France had ~7000 new positives the last day (although that number doesnt say much without absolute number of tests, thats about 7 times as high as in Germany and people/government are worrying here...), Nice and Paris being red zones, and they allow 5000 fans in start/finish.
Happy as anyone to watch the Tour, but thats not right, should have it without Fans at the road.
It is 1000 people at the start and finish line - The whole route today was sparsely populated.
 
Reactions: Cassirer
Right, this isn't directly race related, but I was honestly a little surprised there even is a caravan at the Tour this year.
Or maybe they could have one of the floats/wagons/whateverthey'recalled just spray everyone with disinfect.
Wow, I’d forgotten about the caravan—it doesn’t make any sense to have it this year. Hopefully they are tossing out little bottles of disinfectant and official le Tour masks (in yellow, green, white, polka dots, of course)!
 
A lot of fans on the Perysourde. Slightly concerning for the future of this race I think.
I don't get it. They should not let people up the mountain. At least I think so, perhaps the virus has changed. But going from a strict lockdown to that situation is strange.
In germany we didn't really have a lockdown, but at sporting events there are no spectators allowed. Today they organised the triathlon world championchip in Hamburg without any spectators. They just closed the city around a parc.
 
It might be because I don't really care about travelling half-way across Europe in order to spend hours packed on a mountainside with thousands of other people, but honestly I think those people on the climbs are being quite egotistical. It's like they don't realise - or care - that the race is supposed to continue for weeks after they had their fun.
Seriously, people; just stay the *** at home!
 

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