The article already talks to the numbers they mean and what scale they believe it to be:

> More than 6,400 lawsuits against Syngenta and Chevron that allege a link between paraquat and Parkinson’s are pending in the U.S. District Court of Southern Illinois. Another 1,300 cases have been brought in Pennsylvania, 450 in California and more are scattered throughout state courts.

> “I do think it’s important to be clear that number is probably not even close to representative of how many people have been impacted by this,” said Christian Simmons, a legal expert for Drugwatch.