| Study Years | Reference No. | Country | Immunosuppression + RSV (No.) | Total No. of Patients | Underlying Disease |
|---|---|---|---|---|---|
| 1974- 1984 | 41 | USA | 7,7% (47) | 608 | Immune compromized (chemotherapy, cortico-steroid therapy, immuno-deficiency disease) |
| 1994- 1998 | 42 | USA | (18) | unknown | Cancer with polychemotherapy |
| 1990- 1993 | 43 | USA | 7,6% (10) | 131 | HIV |
| 1997- 1998 | 44 | South Africa | 5,3% (23) | 433 | HIV |