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MICRO5
Parisitic infections of the Skin
| Question | Answer |
|---|---|
| LICE | LICE |
| Bacteria that causes BODY lice? | Pediculus humanus corporis |
| Bacteria that causes HEAD lice? | Pediculus humanus capitis |
| How do the head lice grow? What do they cause? | They feed on blood-->itching |
| DISEASES OF WOUNDS | DISEASES OF WOUNDS |
| What causes Gas Gangrene? | Clostriduium perfringens |
| What does that bacteria also cause? | Food infections |
| What is its growth condition and gram stain? | Gram + spore former that is an anerobe |
| Give me the four steps of infection with Gangrene? | 1. Carbs-->Acid and Gas 2. Crepitation (Hydrogen bubbles in tissue) 3. Ischemia (block blood flow) 4. Necrosis |
| When would you acquire it? | Whenever there is dirt near the wound |
| When did we have lots of manifestations of Gas Gangrene? (3 events) | During wartimes; improper abortions; diabetes |
| Important virulence? | Alpha and beta (necrotizing) toxins |
| Treatment? | Debridement, oxygen |
| Prevention? | Clean the freaking wounds |
| What is another bacteria associated with wounds? Which type of wounds specificially? | Pseudomonas aeruginosa associated with BURNs |
| Gram stain, growth, | Gram (-) rod in soil; AEROBE |
| What can it cause? | Flouresces burns |
| How would you acquire it? | Nosocomial usually |
| Viruence factor? | Exotoxin A and Biofilm in CF patients |
| DISEASES OF THE EYES | EYE DISEASES |
| What bacteria causes Ophthalmia neonatorum? | Neisseria gonorrhoeae |
| Who does it target AND how is it acquired? | Babies-->they get it when getting out of birth canal |
| How would you prevent and treat it? | Give Ab at birth |
| What did we used to give to treat it? | silver nitrate |
| Inclusion conjuctivitis is caused by? | Chalmydia trachomatis |
| How can you acuire it? | Babies during birth, and us in swimming pools |
| Trachoma is due to? | Chlamydia trachomatis |
| Steps of infection: | Trichiasis (eyelashes turn inward and scar cornea)-->inflmamation-->Panus forms, gets into cornea-->blindness |
| How is it transmitted? | Flies, hand contact |
| Pinkeye is caused by? | Strep pnemonia, H. inf, S. Aureus, Pseudomonas AND VIRAL |
| What is associated with this disease? | Lots of pus forms |
| How is this different in virus? Name another Viral infection of the eye: | No pus forms;;herpes keratin |