Can the flu result in a Workers' Comp claim?

L & I has just released a memorandum discussing when seasonal or H1N1 influenza may be considered a workers' compensation claim. The notice has also been issued to physicians, clinics, hospitals, self-insured employers, etc. See the notice here: http://www.lni.wa.gov/ClaimsIns/Files/Providers/ProvBulletins/PbFiles/PB0908.pdf