According to the WHO, the world is now in the post-pandemic period. The first case in the United States was found April 15, 2009 in California and a public health emergency was declared 11 days later. By mid-June, the WHO had declared a global H1N1 pandemic and all of America and its territories had reported cases.

H1N1 was a virus that normally circulated in pigs in Europe and Asia but adapted to speared through human-to-human transmission. It was not caused by eating pork or pork products.

While most people who contracted the virus recovered without needing medical treatment, some hospitalizations and deaths occurred, especially since 70% of those infected had preexisting conditions that made them “high-risk” patients.

The prevention methods for H1N1 are similar to those for seasonal flu; those who are infected were able to spread the disease 1 day before symptoms developed and up to 7 days after they became sick.

By August 2010, the pandemic was declared over.