Songo fever had an initial death rate of about 30 percent.

Evidence

The death rate from Songo fever, initially, was about 30 percent. — Nicholson Baker, Baseless- My Search for Secrets in the…, 487

Categorization

• corroborated: 3 independent passages support this claim — Nicholson Baker, Baseless- My Search for Secrets in the…, 487