Viral Zone
ViralZone is a Swiss Institute of Bioinformatics web-resource for all viral genus and families, providing general molecular and epidemiological information, along with virion and genome figures.
Pub Med
PubMed is a free search engine accessing primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics.
ENTREZ
Entrez is a molecular biology database system that provides integrated access to nucleotide and protein sequence data, gene-centered and genomic mapping information, 3D structure data, PubMed MEDLINE, and more. The system is produced by the National Center for Biotechnology Information (NCBI) and is available via the Internet.
ProMED
ProMED, an internet site of the International Society for Infectious Diseases, is the largest publicly-available system conducting global reporting of infectious diseases outbreaks.