Karunakaran D, Hinshaw V, Poss P, Newman J, Halvorson D
Avian Dis. 1983 Apr-Jun;27(2):357-66.
Avian influenza outbreaks in Minnesota involving the H10N7 subtype occurred on two turkey farms in 1979 and on a third in 1980. The H10N7 (Hav2 Neq1) subtype had not previously been detected in turkeys in Minnesota or reported in the United States. The clinical signs ranged from severe, with a mortality rate as high as 31%, to subclinical. Antigenically indistinguishable viruses were isolated from healthy mallards on a pond adjacent to the turkey farms, suggesting that the virus responsible for the outbreak may have been introduced by feral ducks.
1979年，明尼苏达州的两家火鸡养殖场爆发了涉及H10N7亚型的禽流感疫情，1980年，第三家养殖场也出现了疫情。此前，明尼苏达州的火鸡中未检测到H10N7（Hav2 Neq1）亚型，美国也未报告过该亚型。临床症状从严重到亚临床不等，死亡率高达31%。在火鸡养殖场附近池塘的健康绿头鸭中分离出了抗原性无法区分的病毒，这表明引发疫情的病毒可能是由野鸭引入的。
