Direct contact
That is by contact with secretions from infectious lesions.
Fomites
Yaws may also be transmitted by indirect contact. The organism may remain alive on fomites or on the earthen floor in hot and humid conditions long enough to cause infection.
Vector of Yaws
There is some evidence that small flies and other insects feeding on the lesion may possibly convey the infection mechanically for brief periods. Transplacental, congenital transmission does not occur
Prevent Transmission of Yaws
How to Prevent Transmission?
To prevent further spread of this disease following activities are carried out
- New cases are detected by house to house visit (Active survey twice a year in endemic area).
- Patients as well as contact persons are treated simultaneously.
- For active participation, involvement of society IEC activities are carried out.
- For strengthening of this programme participation of other departments such as Panchayat Raj Sanstha, Tribal Development Dept, Integrated Child Development Dept. Education, Forest, Agriculture etc. is ensured.
- Promotion of environmental improvement
- Improvement of personal and domestic hygiene.
- Adequate water supply.
- Liberal use of soap.
- Better housing conditions.
- Improvement of the quality of life.