Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2010 Oct 7;6(10):e1000949. doi: 10.1371/journal.pcbi.1000949

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Cai et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

The influenza viruses labeled with the cluster names SI87, BE89, BE92, WU95 are defined by [8]. One unit (grid) corresponds to a two-fold change in HI assay. This data is a subset of the HI data shown in Figure 2.