Elodie Senggen Manoloff*, Patrick Francioli*, Patrick Taffé†, Guy van Melle†, Jacques Bille*, and Philippe M. Hauser*
Author affiliations: *Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; †Institut Universitaire de Médecine Sociale et Préventive, Lausanne, Switzerland
Figure. Distribution over time of Pneumocystis carinii types, as determined by polymerase chain reaction (PCR) – single-strand conformation polymorphism technique (SSCP), observed in Centre Hospitalier Universitaire Vaudois. Each occurrence is represented as a bar corresponding to the period of 15 weeks from 3 months before to 3 weeks after PCP diagnosis. Starred types may exhibit excessive clustering (see text).