Case Write-up #6: Low back pain - Yale School of Medicine

egg - L1 - M1 - L2 - M2 - L3 - M3 - L4 - M4 - adult. ... few worms cause no symptoms. 200 to 1000 worms cause anemia, blood loss (intestinal lesions leak blood), dysentery, ... 100 to 500 worms can cause considerable damage. 1) cutaneous phase - itching skin at penetration sites. 2) pulmonary phase - coughing, lung infections, lung hemorrhage ... ................
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