Case #2 (Yin et al., Am. J. Trop. Med. Hyg., 73(5), 2005, pp. 985–990)
Case 1. A 44-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, fatigue, headache,
dizziness, and nausea/vomiting were also present. Progressive acronumbness began
before his arrival at the hospital. Hypesthesia of the acral limbs and a fluctuation
of the heart rate were found on admission. The symptoms subsided within three days.
Case 2. A 35-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, fatigue, headache, and
nausea/vomiting were also present. Progressive acronumbness occurred before his arrival
at the hospital. Hypesthesia of the acral limbs was found on admission. His symptoms
subsided within 24 hours.
Case 3. A 34-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, throat tightness, fatigue,
dizziness, and nausea/vomiting were also present. Progressive acronumbness, slurred
speech, and breathing difficulty occurred before hospital arrival. Hypesthesia of the acral
limbs, dysarthria and a fluctuation of the heart rate were found on admission. His
symptoms subsided within five days.
Case 4. A 22-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, throat tightness, fatigue,
headache, dizziness, and nausea/vomiting were also present. Progressive acronumbness,
slurred speech, four-limb weakness, and breathing difficulty began before his arrival at
the hospital. Hypesthesia of the acral limbs, dysarthria, tetraparaesis with hyporeflexia,
and a fluctuation of the heart rate were found on admission. The symptoms subsided
within five days.
Case 5. A 40-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, fatigue, headache,
dizziness, and nausea/vomiting were also present. Progressive
acronumbness, breathing difficulty, and chest tightness occurred within half an hour. He
died on the way to the hospital two hours after onset.
Case 6. A 24-year-old man experienced acute numbness of the mouth, lips, fingers, and
toes after eating gastropods. Dimmed vision, muscle weakness, fatigue, headache,
dizziness, and nausea/vomiting were also present. Progressive
acronumbness, four-limbs weakness, slurred speech, and breathing difficulty occurred
within half an hour. He died on the way to the hospital two hours after onset.