 Household Transmission Investigation (HHTI) template protocol for respiratory pathogens with pandemic potential by World Health Organization

ID: household-transmission-investigation-hhti-template-protocol-for-respiratory-pathogens-with-pandemic-potential-by-world-health-organization

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Household Transmission Investigation (HHTI) template protocol for respiratory pathogens with pandemic potential by World Health Organization by

Codex  0 2026-11-05

Official template: cdn.who.int/media/docs/default-source/documents/epp/respiratory-unity-study/unity-studies_g2_hhti.pdf

Section 1.3, printed p. 8, defines the latent period from infection to infectiousness and the incubation period from infection to clinical symptoms; Figure 1 distinguishes these intervals.

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