A plane passenger was diagnosed with human monkeypox after falling ill before being hospitalised.
The traveller is said to have taken a flight to the U.S from Lagos, Nigeria on July 8 before travelling onwards on an internal flight to Dallas, according to the Centers for Disease Control and Prevention (CDC).
The case was confirmed by federal and state health officials on Thursday.
The individual, who was not identified, was transferred to hospital for treatment and everyone on both flights who may have been in contact with the passenger are being contacted with the help of the airline, state and local health officials, reports abc7 eyewitness news.
The CDC said in a statement: “Travelers on these flights were required to wear masks, as well as in the U.S. airports due to the ongoing COVID-19 pandemic.
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“Therefore, it’s believed the risk of spread of monkeypox via respiratory droplets to others on the planes and in the airports is low.”
Monkeypox is part of the same family of viruses as smallpox, but causes a milder infection.
It is a rare but potentially serious viral illness that typically starts with a flu-like sickness and swelling of the lymph nodes.
It can also lead to a rash on the face and body, with most infections lasting two to four weeks.
According to the CDC, lab tests showed the traveller was infected with a strain of monkeypox most commonly seen in parts of West Africa, including Nigeria.