In which country was swine flu first reported?
D
Correct answer
Explanation
The 2009 swine flu pandemic was first detected in Mexico, specifically in the state of Veracruz in early 2009. The virus then quickly spread to the United States and globally. While the earliest confirmed cases were in Mexico, genetic analysis suggests the virus may have been circulating undetected beforehand. Note: 'Singpore' in option C is misspelled.