Assessment of seasonality was performed for the year 2007 and 2008. During these two years P.marneffei accounted for 87 of 793 (11.0%) of all HIV related admissions. The number of penicilliosis admissions was 43 during the hot rainy months (May to October) and 44 during the cooler dry months (November to April). The number of all HIV-related admissions was 463 during the rainy months and 330 during the dry months. The proportion of penicilliosis admissions in relation to all HIV-related admissions comparing dry versus rainy season did not show statistically significant difference (p = 0.07, χ 2test).