| infectious disease. the enigma of west nile. . | fifteen months after the 1999 outbreak of west nile virus in new york city, which sickened 62 mostly elderly people and killed seven, scientists are still hard pressed to predict how abundant the virus will eventually become or how serious a public health threat it will pose. this summer, the human toll has been relatively mild, with just 18 cases and one death. but the virus has been found in more than 60 bird species and about a dozen mammals; in a little more than a year, it has spread to 11 ... | 2000 | 11185500 |
| west nile virus activity--united states, 2001. | in 2001, west nile virus (wnv) activity was reported from 359 counties in 27 states and the district of columbia (dc) to arbonet, a web-based, surveillance data network maintained by 54 state and local public health agencies and cdc. this activity represented a marked increase from 2000, when wnv activity was reported from 138 counties in 12 states and dc. this report summarizes surveillance data for 2001, which indicate that 66 human illnesses were reported from 10 states and that widespread wn ... | 2002 | 12079245 |