191.3 ð©º å §ç§å°ç§èåç
191.3.0.1 1ïžâ£ Atherosclerosis + C. pneumoniae Controversy
- Multiple sero-epidemiological studies showed association
- Prospective antibiotic trials (PROVE-IT, WIZARD, ACES) â NEGATIVE
- Macrolide / doxy did NOT reduce CV events
- Mechanism: likely co-existing inflammation, not causative
- Current guidelines: do NOT prescribe antibiotics for atherosclerosis
191.3.0.2 2ïžâ£ Empirical CAP â Should Cover Atypicals
- IDSA/ATS 2019 CAP guidelines
- Atypical pathogens (M. pneumoniae, Legionella, Chlamydia, Coxiella) äž covered by β-lactam alone
- Include macrolide / doxy / FQ in empirical regimens
- Severe CAP combination β-lactam + atypical coverage
191.3.0.3 3ïžâ£ Psittacosis Outbreaks (Recent)
- 2017 Germany â pet shop outbreak
- 2023 USA â large poultry processing outbreak (Idaho)
- 2024 European poultry industry surveillance
- ç 人 cluster + bird exposure â public health alert + source trace
191.3.0.4 4ïžâ£ Bird Cage Cleaning Practices
- Wet cleaning (not dry â dust aerosolizes)
- Disinfectant
- PPE (mask, gloves)
- Outdoor / ventilated area
- Education for pet shop, breeders, owners
191.3.0.5 5ïžâ£ Differential CAP with Specific Exposure
| Exposure | è |
|---|---|
| Bird | C. psittaci |
| Cattle / sheep / goats / unpasteurized dairy | Coxiella (Q fever) |
| Hot tub / cooling tower / hotel travel | Legionella |
| Cave / bat | Histoplasma |
| Construction (Southwest USA) | Coccidioides |
| Mississippi / Ohio valley | Histoplasma, Blastomyces |
| Healthcare / nursing home | Aerobic gram-negatives, MRSA |
| Aspiration risk | Anaerobes, mixed flora |
191.3.0.6 6ïžâ£ Pediatric C. pneumoniae
- 5-15% pediatric CAP
- Pharyngitis common (school-age, adolescent)
- Macrolide standard (doxy < 8 yr historical but short course OK now)