Can I use these maps in my publication?
The maps are in the public domain and may be reproduced in any form
without obtaining formal release or permission.
We would appreciate citing USGS as the source.
Can I get the data used to make these maps?
The data used to create the maps is not available for release by USGS.
USGS obtains the data from CDC. CDC, in turn, obtains the data from
state health departments that have agreed with CDC on public dissemination
of that data in certain forums: USGS maps, the Morbidity and Mortality Weekly Report (
MMWR), the CDC web site, and
select scientific publications.
How do I get maps of previous years?
Maps of WNV activity in previous years are available by clicking the link to
Historical Data.
How do I get maps of previous weeks?
The WNV surveillance data is constantly being revised, corrected, and updated.
For this and technical reasons, we do not have an archive of prior weekly
maps available for viewing.
