Hendra Virus Infections

Hendra virus is a zoonotic virus belonging to the Paramyxoviridae family and is associated with severe respiratory and neurological disease in horses, as well as potentially fatal infections in humans. The natural reservoir for Hendra virus is believed to be fruit bats (flying foxes), and horses act as intermediate hosts. Human infections usually occur through close contact with infected horses' respiratory secretions or tissues. In horses, Hendra virus infection often presents with a sudden onset of fever, respiratory distress, and neurological signs. The virus can cause a range of clinical manifestations, from mild respiratory illness to severe disease with a high mortality rate. Horses infected with Hendra virus can transmit the virus to humans, and since the first human case in 1994, there have been sporadic cases reported, highlighting the zoonotic potential of this virus. Human infections with Hendra virus are rare but can result in severe respiratory and neurological complications. The symptoms may include fever, cough, respiratory distress, and encephalitis. The high mortality rate underscores the importance of early diagnosis, supportive care, and preventive measures. Preventive strategies involve minimizing close contact with sick horses, practicing good hygiene, and using personal protective equipment when handling potentially infected animals. Vaccination of horses has been developed to reduce the risk of Hendra virus transmission to both humans and other susceptible animals.