A virus is a sub-microscopic infectious agent that is unable to grow or reproduce outside a host cell. It has genes made from either DNA or RNA, a protein coat that protects these genes but no cell membrane or nucleus.
Sites 2
- Influenza Virus Database (IVDB) Provides an integrated information resource and analysis platform for genetic, genomic, and phylogenetic studies of influenza virus.
- Influenza Virus Resource Provides data obtained from the NIAID Influenza Genome Sequencing Project as well as from GenBank, combined with tools for flu sequence analysis and annotation.