Table 4.1. Early Clinical Signs and Symptoms After Exposure to Selected Bioterrorist Agents
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Clinical Signs and Symptomsa
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Agent or Disease
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Respiratory
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Influenza-like illness ± atypical pneumonia
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Tularemia. Brucellosis. Q fever. Venezuelan equine encephalomyelitis. Eastern equine encephalomyelitis. Western equine encephalomyelitis.
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Influenza-like illness with cough and respiratory distress
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Inhalational anthrax. Pneumonic plague. Inhalational tularemia. Ricin. Aerosol exposure to Staphylococcal enterotoxin B. Hantavirus.
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Exudative pharyngitis and cervical lymphadenopathy
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Oropharyngeal tularemia
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Neurologic
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Flaccid paralysis
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Botulism
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Encephalitis
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Venezuelan equine encephalomyelitis. Eastern equine encephalomyelitis. Western equine encephalomyelitis.
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Meningitis
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Inhalational anthrax. Septicemic and pneumonic plague. Venezuelan equine encephalomyelitis. Eastern equine encephalomyelitis. Western equine encephalomyelitis.
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Gastrointestinal
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Diarrhea
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Salmonella species. Shigella dysenteriae. Escherichia coli O157:H7. Vibrio cholerae. Cryptosporidium parvum.
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Vomiting, abdominal pain, bloody diarrhea, hematemesis
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Gastrointestinal (GI) anthrax
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Dermatologic
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Vesicular rashb associated with fever, headache, malaise
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Smallpox
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Painless ulceration progressing to black eschar
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Cutaneous anthrax
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Ulcer plus painful regional lymphadenopathy and influenza-like illness
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Ulceroglandular tularemia
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Petechiaeb with fever, myalgia, prostration
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Viral hemorrhagic fever
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Cardiovascular
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Shock after respiratory distress
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Inhalational anthrax. Ricin. Viral hemorrhagic fever.
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Hematologic
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Thrombocytopenia
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Brucellosis. Viral hemorrhagic fever. Hantavirus.
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Neutropenia
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Viral hemorrhagic fever. Venezuelan equine encephalomyelitis. Eastern equine encephalomyelitis. Western equine encephalomyelitis.
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Hemorrhage
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Viral hemorrhagic fever
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Disseminated vascular coagulation
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Viral hemorrhagic fever
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Renal
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Hemolytic-uremic syndrome, thrombotic thrombocytopenic purpura
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Escherichia coli O157:H7 and other shiga toxin-producing E. coli. Shigella dysenteriae.
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Oliguria, renal failure
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Viral hemorrhagic fever. Hantavirus.
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Other
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Painful lymphadenopathy
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Bubonic plague
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Purulent conjunctivitis with preauricular or cervical lymphadenopathy
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Oculoglandular tularemia
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a Based on route of exposure; likely to make someone
seek medical attention; other manifestations (e.g., fever, headache, vomiting,
diarrhea) possible and common early on in many illnesses.
b Rashes
of diseases that cause petechiae or vesicular skin lesions may start as
macular or papular lesions.
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