Gerritsen, R.

inxuenza group healthcare participant infection healthcare personnel healthcare workers study novel inxuenza h 1n infection worker virus personnel hospital vaccination uitgeverij inxuenza outpatient clinic incidence rate slotervaart hospital inxuenza-like signs rt –pcr novel outpatient patient h 1n virus incidence health inxuenza-like inxuenza infection throat department exposure sample pandemic diverent clinic vaccinated person rt – pcr antibody symptom tussen titer visie vertaling worden kinneging convalescent sera slotervaart conwrmed uitgeverij lemniscaat inxuenza-like illness verlichtingsdenker pragmatisme environ 66 healthcare workers occup laboratory h 1n pandemic illness netherland amsterdam philipse diverent risk groups pragmatism individual transmission signiwcant donner william unvaccinated group participants control inxuenza patients antibody titer wetenschap assay analysis table result