Entry screening to delay local transmission of 2009 pandemic influenza A (H1N1).

ABSTRACT:

Background

After the WHO issued the global alert for 2009 pandemic influenza A (H1N1), many national health agencies began to screen travelers on entry in airports, ports and border crossings to try to delay local transmission.

Methods

We reviewed entry screening policies adopted by different nations and ascertained dates of official report of the first laboratory-confirmed imported H1N1 case and the first laboratory-confirmed untraceable or 'local' H1N1 case.

Results

Implementation of entry screening policies was associated with on average additional 7-12 day delays in local transmission compared to nations that did not implement entry screening, with lower bounds of 95% confidence intervals consistent with no additional delays and upper bounds extending to 20-30 day

SUBMITTER: Cowling BJ 

PROVIDER: S-EPMC3152767 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature