| Preventive measures | Female | % | Male | % | Total frequency | Percentage |
| Avoiding sexual intercourse | 139 | 41.6% | 109 | 32.6% | 248 | 74.2% |
| Vaccination | 12 | 3.6% | 5 | 1.5% | 17 | 5.1% |
| Being faithful to one partner | 24 | 27.9% | 31 | 36.0% | 55 | 63.9% |
| Use of condoms | 10 | 11.6% | 32 | 37.2% | 42 | 48.8% |
| Douching after sex | 3 | 3.5% | 4 | 4.7% | 7 | 8.2% |
| Oral contraceptive | 3 | 3.5% | 0 | - | 3 | 3.5% |
| Avoid excessive use of alcohol | 1 | 0.3% | 3 | 0.9% | 4 | 1.2% |
| Don’t use any | 7 | 2.1% | 12 | 3.6% | 19 | 5.7% |