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BW Grill #4
| Question | Answer |
|---|---|
| Rickettsia | - Transmission via tick/lice [arthropod vector] - Multiply in inner lining of blood vessel, causing cardiovascular damage & rashes. |
| Rickettsia rickettsii | Rockey mountain spotted fever -transmitted via ticks |
| Rickettsia prowazekii | Epidemic typhus - transmitted via lice - common in crowded unsanitary areas |
| Chlamydia | No vector transmission required Two stages: - Elementary body -> Infectious stage - Reticulate body -> Larger, multiplies inside host cell, later gives rise to elementary cell to infect other cells. |
| Chlamydia trachomatis causes... | - Trachoma -> form of blindness - Non-gonococcal urethritis -> very prevalent STD |
| Mycoplasma pneumoniae | Causes Mycoplasma Pneumonia, aka walking pneumonia or primary atypical pneumonia |
| Mycoplasma... | pleomorphic, lacks cell wall |
| Rickettsia & Chlamydia | Obligate intracellular parasites - Very small, smaller than some of the largest viruses |