Table 1. Astrovirus-positive samples from commercial rabbitries with enteric diseases and results of electron microscopy, clinical observations, and pathologic, bacteriologic, and parasitologic investigations, Italy, 2008*.

Sample no.	Place of origin	GE/mL feces	Electron microscopy results†	Clinical observations	Pathologic findings	Bacteriologic findings (intestinal tract)	Parasitologic findings (intestinal tract)
1	Pavia	3.1 × 108	Rotavirus ++ Coronavirus +++	Age 48 d, enteric syndrome	Enterocolitis	Escherichia coli, Clostridium perfrigens	Negative
2	Brescia	8.5 × 103	Negative	Age 35 d, enteric syndrome	Enterocolitis	E. coli	Negative
3	Brescia	1.5 × 106	Negative	Age 55 d, enteric syndrome; fatal in 24 h	Enteritis with tracts containing fluids and tract filled with feces	Negative	Coccidia
4	Nuoro	1.0 × 108	Rotavirus +/–	NA	Catarral enteritis	E. coli	Coccidia
5	Brescia	9.7 × 107	Rotavirus ++ Phages ++	Age 51 d, enteric syndrome, high mortality	Enterocolitis with swollen colon	E. coli	Coccidia
6	Brescia	1.0 × 109	Coronavirus+	Age 51 d, enteric syndrome, high mortality	Enteritis	E. coli	Coccidia
7	Brescia	3.8 × 107	Rotavirus +++ Phages +++	Age 51 d, enteric syndrome	Enterocolitis, with swollen colon	E. coli	Negative
8	Padova	7.3 × 103	Rotavirus +++	NA	Catarral enteritis	E. coli	Negative
9	Lecco	1.4 × 1010	Rotavirus +++	NA	Typhlitis and colitis, swollen tracts of the gut with fluid content	E. coli (gut), Streptococcus spp. (liver and spleen)	Coccidia
10	Cagliari	6.5 × 107	Negative	NA	Catharral enteritis	E. coli	Coccidia

*GE, genome equivalent; NA, not available.
†+/–, very low positivity; +, low positivity; ++, discrete positivity; +++, strong positivity.