| mediterranean spotted fever in marseille, france: correlation between prevalence of hospitalized patients, seroepidemiology, and prevalence of infected ticks in three different areas. | we report the results of a comparison of several epidemiologic and ecologic parameters affecting the incidence and seroprevalence of mediterranean spotted fever (msf) in northern, central, and southeastern marseille, an area endemic for this disease. in northern marseille, the incidence of hospitalized patients with msf was 24.2/100,000 persons compared with 9.8/100,000 and 8.8/100,000 for the central and southeastern regions, respectively. the seroprevalence in sera from blood donors, determine ... | 1993 | 8447529 |