The human to rat ratio in NYC is 8:3. It’s not just affecting the unhoused, but also people who work in rat infested areas. Probably sanitation, subway, plumbing, masonry repair, etc.
Only tangentially related to post, but if your never been to New York some of the majesty and magic that you see in all the movies is lost when you go. Specifically if you see in a film set in summer and someone walking by the entrance to any subway in the city? You need to imagine the hot stuffy air that smells like you just opened a sun-baked porto potty door blowing up from underground and assaulting your face as you pass
So, without reading the article, I'm assuming it's lethal to humans and not just an issue where we all need to tell the closest rat to have a glass of cranberry juice for their uti.