Table 5. Number (%) of centers routinely performing diagnostic tests on their clinical staff or patients before the start of ovarian stimulation.
Patients with positive symptoms or COVID 19 diagnostic test July Aug
n=179
Sept n=144 Oct
n=110
Nov
n=138
Dec
n=98
No cases 132 (73.7) 91 (63.2) 52 (47.3) 55 (39.9) 33 (33.7)
Positive cases 47 (26.3) 53 (36.8) 58 (52.7) 83 (60.1) 65 (66.3)
Proportions of affected patients
1-2%
3-5%
6-10%
>11%

28 (15.6)
9 (5.0)
7 (3.9)
3 (1.7)
30 (20.8)
15 (10.4)
8 (5.6)
0
32 (29.1)
14 (12.7)
11 (10.0)
1 (0.9)
50 (36.2)
22 (15.9)
10 (7.2)
1 (0.7)
33 (33.7)
24 (24.5)
6 (6.1)
2 (2.0)