Table 3. Means and standard deviation of bacterial and fungal counts of air samples collected from studied wards.

Studied wards	Mean ± SD of bacterial count (cfu/m3)	Mean ± SD of fungal count (cfu/m3)
Male medical ward (n=40) Female medical ward (n=35) Emergency room (n=38) Operation room (n=47) Intensive care unit (n=31) Out-patient department (n=24)	428 ± 295 331 ± 172 216 ± 62 57 ± 34 38 ± 7 575 ± 253	134 ± 122 162 ± 66 132 ± 117 15 ± 7 23 ± 4 262 ± 218
Out-door (n=6)	796 ± 88	261 ± 141

Remark: Most isolated bacteria were Staphylococcus spp. (57%) and most isolated fungi were Penicillium spp. (39%) and Aspergillus spp. (31%).