| echovirus type 13--united states, 2001. | echoviruses constitute one of the major groups of the genus enterovirus and are associated with illnesses including aseptic meningitis, nonspecific rashes, encephalitis, and myositis (1). echovirus 13 is an enterovirus that rarely has been detected in the united states, accounting for only 65 of approximately 45,000 enterovirus isolates reported to cdc during 1970-2000. no associated outbreaks have been reported in this country. as of june 2001, eight state public health laboratories and one pri ... | 2001 | 11570484 |