Astrovirus is a family of viral pathogens¹ that can cause foodborne disease. A publication by Scallan et al.² in 2011 estimated that 15,433 human foodborne astrovirus cases, including 0 deaths, occur annually in the US.

Key laboratories studying various aspects of foodborne astrovirus in the US and Canada include:

Key laboratories studying various aspects of foodborne astrovirus in Europe include:

Key laboratories studying various aspects of foodborne astrovirus in South and Latin America include:

Key laboratories studying various aspects of foodborne astrovirus in Asia and Australia include:

Additional resources on astrovirus:
A number of key sources on astrovirus are available. 

 References
¹http://en.wikipedia.org/wiki/Astrovirus
²Scallan et al. 2011.Emerging Infectious Diseases 17:7-15  PMID:21192848