FIG. 1.

Geographic distribution of tetracycline-resistant S. pneumoniae isolates in the study. The solid circles indicate the health care centers where the isolates were identified. Abbreviations of towns: BE, Be[strok]lchatów; BY, Bydgoszcz; CZ, Częstochowa; EL, E[strok]lk; GD, Gdańsk; GR, Grajewo; KO, Ko[strok]lobrzeg; KR, Kraków; LU, Lublin; LO, [strok]Lódź; ML, M[strok]lawa; OP, Opole; PR, Przemyśl; RA, Radom; RM, Rawa Mazowiecka; SA, Sanok; SO, Sochaczew; ST, Stargard; SU, Suwa[strok]lki; SZ, Szczecin; WA, Warszawa; WR, Wroc[strok]law; ZA, Zabrze; ZM, Zamość; ZW, Zawiercie. Numbers of isolates are shown in parentheses. *, 28 is the total number of isolates from five health care centers in Warsaw.