“…The incidence of thromboembolic complications is elevated in individuals during and after influenza virus infection, for example, a relation which may not be apparent to physicians diagnosing and treating influenza-like illness [ 1 ]. Platelet counts during peak symptomatic disease have also been found to be a marker of disease severity in certain viral infections, [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ] or can serve as a first clue towards diagnosing chronic viral infections [ 20 , 21 , 22 , 23 ]. These phenomena are typically not explained by changes in platelet quantity, but rather by the effects of viral infections on platelet function.…”