title: [One recognizes the (sick) bird by its feathers. Is psittacosis on the increase?].
mesh_terms: D000818:Animals; D004812:Epidemiologic Methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D009956:Psittacosis / Q000453:epidemiology* / Q000517:prevention & control; D015047:Zoonoses
vernacular_title: Men kent de (zieke) vogel aan zijn veren. Neemt de papegaaienziekte weer toe