Using citizen science in the battle against influenza - The Lancet Infectious Diseases

http://www.thelancet.com/journals/laninf/article/PIIS1473-3099%2816%2900137-7/fulltext?elsca1=etoc&amp%3Belsca2=email&amp%3Belsca3=1473-3099_201604_16_4_&amp%3Belsca4=Public+Health%7CInfectious+Diseases%7CInternal%2FFamily+Medicine%7CNeuropsychiatry%7CNeurology%7CLancet#.VwRLx7Sh4sk.twitter