| Serotypes and strains | StudyArea | Total reactions | ||||
| Coyoacán (n = 38) positives | Iztapalapa (n = 34) positives | Iztacalco (n = 31) positives | B. Juárez (n = 14) positives | Total (n = 117) positives | %
| |
| Icterohaemorrhagiae (RGA) | 2 | 4 | 3 | 0 | 9 | 12.1 |
| Icterohaemorrhagiae (Palo Alto)a | 5 | 5 | 2 | 3 | 15 | 20.3 |
| Pyrogenes (Salinem) | 3 | 1 | 1 | 1 | 6 | 8.1 |
| Griptotyphosa (Moska V) | 0 | 0 | 1 | 0 | 1 | 1.4 |
| Canicola (HondUtrech IV) | 7 | 6 | 5 | 2 | 20 | 27 |
| Pomona (Pomona) | 0 | 0 | 0 | 0 | 0 | 0.0 |
| Hardjo (Hardjo-bovis LT1085) | 0 | 1 | 0 | 0 | 1 | 1.4 |
| Hardjo (Hardjoprajitno) | 0 | 0 | 0 | 0 | 0 | 0 |
| Hardio (hardioprajino H-89)b | 0 | 1 | 0 | 0 | 1 | 1.4 |
| Wolffi (3705) | 0 | 2 | 0 | 0 | 2 | 2.7 |
| Tarassovi (Perepelicin) | 0 | 0 | 0 | 0 | 0 | 0 |
| Bratislava (Jes Bratislava) | 3 | 3 | 2 | 0 | 8 | 10.8 |
| Portland-vere (Sinaloa-ACR)c | 4 | 4 | 1 | 2 | 11 | 14.8 |
| Total | 25 | 27 | 14 | 8 | 74 | 100.0 |
| (%) | (65.7%) | (79.4%) | (45.1) | (57.1) | (63.2%) |
|