What country has the largest deaths due to H1N1?

The country that has the largest number of deaths due to the H1N1 virus as of 2022 is the United States, reporting over 12,500 fatalities during the 2009 pandemic. However, it's worth noting that death tolls due to infectious diseases can change and evolve over time, so the most current and accurate information should be obtained from reputable sources such as the World Health Organization or national public health agencies.