Where were the first reports about the emergence of the H3N2 canine influenza virus from?

Where were the first reports about the emergence of the H3N2 canine influenza virus from?

• A. South Korea
• B. United States
• C. China
• D. Europe

Answer: (A)

The first reports come from South Korea. In 2007, dogs in that country showed respiratory illness and the H3N2 influenza virus was isolated and characterized as canine influenza, marking the earliest documented emergence in dogs. This established South Korea as the initial location of observation for this strain, with subsequent detections occurring later in other regions such as the United States, China, and Europe as the virus spread through dog populations and international movement.

The first reports come from South Korea. In 2007, dogs in that country showed respiratory illness and the H3N2 influenza virus was isolated and characterized as canine influenza, marking the earliest documented emergence in dogs. This established South Korea as the initial location of observation for this strain, with subsequent detections occurring later in other regions such as the United States, China, and Europe as the virus spread through dog populations and international movement.