Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Power of a comparative study design associated with alternative timing of home visits by days since ARI onset in the index case assuming a serial interval with mean 2.6 days for (a) designs with one home visit and (b) designs with two home visits; and assuming a serial interval with mean 3.6 days for (c) designs with one home visit and (d) designs with two home visits.
