(2) #Diagnosis and #evidencebased can be done following other criteria: symptoms, epidemiological moment, other clinical results (including blood, CT scan, ecocardio, etc) that all together are largely sufficient evidence and proof to do a diagnosis of infection of Sars-CoV-2 -->

(3) The (auto)-immune response is one of the key to understand mechanisms of #LongCovid and even if long-term effects - particularly sequelae - concern also people with antibodies it is ESSENTIAL to understand how react the immune system of those not producing specific antibodies

(4) also we still don't know perfectly all the bio markers specific of Covid19 and particularly Long Covid, that is another reason to include negative test and consider other criteria for #evidencebased research. @elisaperego78 @ahandvanish @fi_lowenstein @apresj20

(5) @Dr2NisreenAlwan @CovidSolidarit1 @CPersistente @long_covid #COVID19 #covidlong #apresJ20 #covid19italia #mitKoronaleben #covidpersistente