Final answer:
Historically, pandemics have had a significant impact on deaths worldwide. The Spanish Flu pandemic of 1918 killed between 50 to 100 million people, while the recent COVID-19 pandemic has an estimated death toll of 7 million as of 2023. The H1N1 pandemic in 2009 had an official death count of 18,000 but may have been as high as 500,000.
Step-by-step explanation:
When examining historical pandemics, we can compare their impact by the number of deaths. One of the deadliest was the Spanish Flu pandemic of 1918, which infected about 500 million people and resulted in the deaths of between 50 and 100 million. The COVID-19 pandemic, which gained global attention in 2019, has also had a significant death toll. By April 2021, it killed 3.1 million people, and by 2023, the pandemic is estimated to have killed 7 million people worldwide. The H1N1 pandemic in 2009, while not as deadly as the others mentioned, still had a considerable impact, with the official death count at 18,000 worldwide, but estimates suggest the number could be as high as 500,000.