TYPHOID CARRIER, THE
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✎ Suggest a correctionExplains how the typhoid bacillus may be transmitted in milk and water, and by flies and human carriers. Demonstrates how a cook may be unknowingly a carrier of typhoid.
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-02 18:37:16 · Suggest a correction