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.
Example of temperature record provided by the data logger for vaccine delivery during one route, outside the cold chain, in remote regions of western China
Legend: A = provincial store; B = transport by plane; C = transport by truck; D = district temporary store; E = transport by truck; F = county temporary store; G = transport by truck; H = another county temporary store; I = transport by truck; J = health center
