https://en.wikipedia.org/wiki/List_of_accidents_and_incident...
For example, the SARS coronavirus (SARS-CoV-1) escaped from the lab twice, both in 2003 and 2004.
https://www.amazon.com/Lab-257-Disturbing-Governments-Labora...
Warning: this book is non-fiction and is scary.
It may be scary, but it's not non-fiction.
https://en.wikipedia.org/wiki/Building_257#Discredited_consp...
> A discredited 2004 book entitled Lab 257: The Disturbing Story of the Government's Secret Plum Island Germ Laboratory fueled the conspiracy theories. Archived specimens show that Lyme disease was endemic well before the establishment of Plum Island laboratory. Additionally, Lyme disease was never a topic of research at Plum Island, according to the US Department of Homeland Security and Department of Agriculture.