SARS-CoV-2 infection in a hippopotamus, Hanoi, Vietnam


While investigating the death of a hippopotamus at a zoo in Hanoi, Vietnam, we isolated SARS-CoV-2 and sequenced the RNA-dependent RNA polymerase gene from different organs. Phylogenetic analysis showed that the SARS-CoV-2 strain was closely related to 3 human SARS-CoV-2 strains in Vietnam.


Vuong Nghia Bui, Tung Duy Dao, Long Hoang Tran, Thanh Thi Vu, Trang Huyen Nguyen, Giang Hoang Nguyen, Kien Viet Dung Tran, Huyen Xuan Nguyen, Anh Ngoc Bui, Unger, F., Hung Nguyen-Viet and Hu Suk Lee. 2023. SARS-CoV-2 infection in a hippopotamus, Hanoi, Vietnam. Emerging Infectious Diseases 29(3): 658–661.


  • Vuong Nghia Bui
  • Tung Duy Dao
  • Long Hoang Tran
  • Thanh Thi Vu
  • Trang Huyen Nguyen
  • Giang Hoang Nguyen
  • Kien Viet Dung Tran
  • Huyen Xuan Nguyen
  • Anh Ngoc Bui
  • Unger, Fred
  • Hung Nguyen-Viet
  • Hu Suk Lee