| argentina | | st. louis encephalitis virus | species | 7 | 1 |
| argentina | buenos aires city | st. louis encephalitis virus | species | 1 | 1 |
| argentina | buenos aires province | st. louis encephalitis virus | species | 2 | 0 |
| argentina | chaco province | st. louis encephalitis virus | species | 1 | 4 |
| argentina | chubut province | st. louis encephalitis virus | species | 0 | 1 |
| argentina | cordoba province | st. louis encephalitis virus | species | 26 | 9 |
| argentina | corrientes province | st. louis encephalitis virus | species | 0 | 2 |
| argentina | formosa province | st. louis encephalitis virus | species | 0 | 1 |
| argentina | rio negro province | st. louis encephalitis virus | species | 0 | 1 |
| argentina | santa fe province | st. louis encephalitis virus | species | 0 | 6 |
| argentina | tucuman province | st. louis encephalitis virus | species | 1 | 0 |
| australia | western australia | st. louis encephalitis virus | species | 0 | 3 |
| bolivia | tarija department | st. louis encephalitis virus | species | 0 | 1 |
| brazil | | st. louis encephalitis virus | species | 63 | 3 |
| brazil | mato grosso | st. louis encephalitis virus | species | 8 | 0 |
| brazil | minas gerais | st. louis encephalitis virus | species | 1 | 1 |
| brazil | para | st. louis encephalitis virus | species | 1 | 1 |
| brazil | sao paulo | st. louis encephalitis virus | species | 1 | 4 |
| canada | alberta | st. louis encephalitis virus | species | 0 | 1 |
| canada | british columbia | st. louis encephalitis virus | species | 0 | 1 |
| canada | ontario | st. louis encephalitis virus | species | 0 | 5 |
| canada | saskatchewan | st. louis encephalitis virus | species | 0 | 1 |
| canada | yukon | st. louis encephalitis virus | species | 0 | 1 |
| china | yunnan | st. louis encephalitis virus | species | 0 | 1 |
| colombia | bolivar department | st. louis encephalitis virus | species | 0 | 1 |
| colombia | cauca department | st. louis encephalitis virus | species | 0 | 1 |
| colombia | cordoba department | st. louis encephalitis virus | species | 6 | 0 |
| french polynesia | | st. louis encephalitis virus | species | 0 | 1 |
| guatemala | | st. louis encephalitis virus | species | 4 | 0 |
| guatemala | guatemala department | st. louis encephalitis virus | species | 0 | 3 |
| haiti | | st. louis encephalitis virus | species | 2 | 0 |
| honduras | olancho department | st. louis encephalitis virus | species | 0 | 1 |
| jamaica | | st. louis encephalitis virus | species | 1 | 0 |
| japan | hokkaido prefecture | st. louis encephalitis virus | species | 0 | 1 |
| mexico | | st. louis encephalitis virus | species | 6 | 2 |
| mexico | chiapas | st. louis encephalitis virus | species | 0 | 1 |
| mexico | chihuahua | st. louis encephalitis virus | species | 0 | 1 |
| mexico | durango | st. louis encephalitis virus | species | 0 | 1 |
| mexico | oaxaca | st. louis encephalitis virus | species | 0 | 1 |
| mexico | puebla | st. louis encephalitis virus | species | 0 | 1 |
| mexico | sonora | st. louis encephalitis virus | species | 0 | 1 |
| mexico | tamaulipas | st. louis encephalitis virus | species | 0 | 2 |
| mexico | yucatan | st. louis encephalitis virus | species | 0 | 2 |
| panama | | st. louis encephalitis virus | species | 5 | 0 |
| panama | panama province | st. louis encephalitis virus | species | 0 | 4 |
| papua new guinea | northern province | st. louis encephalitis virus | species | 0 | 1 |
| papua new guinea | western province | st. louis encephalitis virus | species | 0 | 1 |
| peru | | st. louis encephalitis virus | species | 3 | 0 |
| trinidad and tobago | | st. louis encephalitis virus | species | 3 | 0 |
| trinidad and tobago | tobago | st. louis encephalitis virus | species | 1 | 0 |
| united kingdom | england | st. louis encephalitis virus | species | 0 | 1 |
| united kingdom | wales | st. louis encephalitis virus | species | 0 | 1 |
| united states | | st. louis encephalitis virus | species | 185 | 20 |
| united states | alabama | st. louis encephalitis virus | species | 0 | 1 |
| united states | arizona | st. louis encephalitis virus | species | 4 | 4 |
| united states | arkansas | st. louis encephalitis virus | species | 0 | 4 |
| united states | california | st. louis encephalitis virus | species | 34 | 57 |
| united states | colorado | st. louis encephalitis virus | species | 1 | 8 |
| united states | district of columbia | st. louis encephalitis virus | species | 0 | 2 |
| united states | florida | st. louis encephalitis virus | species | 3 | 40 |
| united states | georgia | st. louis encephalitis virus | species | 0 | 1 |
| united states | hawaii | st. louis encephalitis virus | species | 0 | 1 |
| united states | idaho | st. louis encephalitis virus | species | 1 | 0 |
| united states | illinois | st. louis encephalitis virus | species | 0 | 5 |
| united states | indiana | st. louis encephalitis virus | species | 0 | 2 |
| united states | iowa | st. louis encephalitis virus | species | 0 | 1 |
| united states | kentucky | st. louis encephalitis virus | species | 1 | 1 |
| united states | louisiana | st. louis encephalitis virus | species | 1 | 3 |
| united states | maryland | st. louis encephalitis virus | species | 0 | 2 |
| united states | massachusetts | st. louis encephalitis virus | species | 0 | 1 |
| united states | michigan | st. louis encephalitis virus | species | 0 | 1 |
| united states | mississippi | st. louis encephalitis virus | species | 1 | 5 |
| united states | missouri | st. louis encephalitis virus | species | 1 | 4 |
| united states | nebraska | st. louis encephalitis virus | species | 0 | 3 |
| united states | nevada | st. louis encephalitis virus | species | 0 | 2 |
| united states | new jersey | st. louis encephalitis virus | species | 0 | 2 |
| united states | new mexico | st. louis encephalitis virus | species | 0 | 1 |
| united states | new york | st. louis encephalitis virus | species | 0 | 8 |
| united states | north dakota | st. louis encephalitis virus | species | 0 | 1 |
| united states | ohio | st. louis encephalitis virus | species | 0 | 3 |
| united states | oregon | st. louis encephalitis virus | species | 1 | 0 |
| united states | pennsylvania | st. louis encephalitis virus | species | 0 | 1 |
| united states | south carolina | st. louis encephalitis virus | species | 0 | 4 |
| united states | tennessee | st. louis encephalitis virus | species | 1 | 2 |
| united states | texas | st. louis encephalitis virus | species | 26 | 20 |