1 / 22

YAWS

YAWS. PIAN BUBAS FRAMBOESIA. Yaws and its relatives are caused by spirochete bacteria. Treponema. Contagious , non venereal treponemal infection. No cardiovascular or neurological abnormalities. Yaws is typically found in tropical areas of Africa, South America, and Asia.

camden-marsh
Download Presentation

YAWS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. YAWS PIAN BUBAS FRAMBOESIA

  2. Yaws and its relativesare caused by spirochete bacteria Treponema

  3. Contagious , non venereal treponemal infection. • No cardiovascular or neurological abnormalities

  4. Yaws is typically found in tropical areas of Africa, South America, and Asia

  5. Between 1950 and 1970, WHO and UNICEF led a campaign to treat people in 46 countries

  6. It worked, but these diseases now receive little attention

  7. Caused by Treponema pertenue . • Reservoir of infection – Man • Age - It affect children < 15 years [peak incidence 6-10 years]. • Immunity – no natural immunity. Provides partial immunity to veneral syphilis.

  8. ENVIRONMENTAL FACTORS • Climate – endemic in warm and humid conditions • Social factors • scanty clothing • Poor personal cleanliness • Overcrowding • Bad housing • Low standard of living • Absence of soap

  9. MODE OF TRANSMISSION • Direct contact • Fomites • Vector INCUBATION PERIOD 3 to 5 weeks

  10. The endemic treponematoses are mainly transmitted by human-to-human contact

  11. CLASSIFICATION • Primary stage …..lesion at site of inoculation. • Secondary stage ….multiple skin lesion. • Latent stage …..no symptom but skin lesion can relapse. • Tertiary ….bone , joint & soft tissue deformality

  12. OTHER CASSIFICATION • Early----: primary & secondary { contagious skin lesion }. • Late -----: tertiary (not contagious).

  13. CLINICAL PRESENTATION • Primary lesion called….. mother yaw.[IP 9-90 days]. • 1ry papule---enlarge → papilloma {resolve spontaneously after 3-6 months }. • 2ry may occur near the 1ry or elsewhere on the body {last for more than 6 months } • Macule , papules , nodules ,and hyperkeratotic lesion in palms & soles { CRAB YAWS } ,lesions may ulcerate. • Saber shin due to chronic untreated osteoperiostitis. • Pt with late yaws → juxtaarticular nodules → gangosa [ rhinopharyngitis mutilans ]

  14. The first sign of yaws is a primary lesion known as a “mother yaw”

  15. Without treatment, secondary widespread lesions form

  16. After years without treatment, larger problems may develop Saber shin / tibia Gangosa

  17. INVESTIGATIONS • Diagnosis on clinical findings. • Non treponema test:VDRL. Positive in all stages except early lesions . • Dark-field examination ….. + ve . • Biopsy. 

  18. These diseases can be diagnosed in two ways Dark field microscopy Serological Tests

  19. MANAGEMENT • Benzathine penicillin ( penicillin G ) 1.2 million units IM once • Penicillin V for 7-10 days.[ for 1ry , 2ry &latent]. • Tetracyclin 1-2 g\ day for 7-14 days.[tertiary] • Erythromycin [tertiary]. • Doxycycline 200mg 1 st ,100 mg\day for 7-14 days.[tertiary].

  20. Benzathine penicillin is the main drug of choice for treatment

  21. CONTROL 1. Survey 2. Treatment • Total mass treatment ( more than 10% prevalence) • Juvenile mass treatment ( 5% to 10 %) • selective mass treatment (less than 5 %) 3. Resurvey and treatment ( every 6 to 12 months) 4. Surveillance 5. Environmental improvement 6. Resurgence of yaws 7. Evaluation

More Related