Ascariasis§ | Worldwide | Fecal–oral | 3–9 d | Löeffler syndrome with cough, dyspnea, wheeze, chest discomfort, fever; urticarial rash | Stool O&P |
Hookworm§,¶ | Worldwide | Skin exposure to contaminated soil | 8–21 d | Löeffler syndrome with cough, dyspnea, wheeze, chest discomfort, fever; pruritic maculopapular eruption at site of larval penetration | Stool O&P |
Paragonimiasis | Tropics/subtropics** | Ingesting undercooked crab or crayfish | Several months | Cough, chest pain, hemoptysis, rust-coloured sputum, urticarial rash | Sputum/stool O&P, serologic testing |
Schistosomiasis | Tropics/subtropics** | Fresh water exposure | 3–4 wk | Often asymptomatic; Katayama fever with fever, urticaria and angioedema, chills, myalgia, arthralgia, dry cough, diarrhea, abdominal pain, headache | Stool/urine O&P, serologic testing |
Strongyloidiasis§ | Tropics/subtropics | Skin exposure to fecally contaminated soil | 23–32 d | Löeffler syndrome with cough, dyspnea, wheeze, chest discomfort, fever; pruritic maculopapular eruption at site of larval penetration, larva currens; diarrhea | Stool O&P, serologic testing†† |
Toxocariasis | Worldwide | Fecal–oral, ingesting undercooked organ meat | Weeks or months | Often asymptomatic; fever, hepatitis, pneumonitis, urticarial rash | Serologic testing, tissue biopsy |
Trichinosis | Worldwide | Ingesting undercooked meat‡‡ | 7–30 d | Often asymptomatic; muscle pain tenderness and swelling, elevated creatine kinase, periorbital edema, conjunctival hemorrhages | Serologic testing, muscle biopsy |