auntie pinpointed that mary mallon was the person carrying this virus. they believe it was spread, she worked in a restaurant where they served ice cream and cake one day a week. and that was the day that people got mostly sick, there was a large investigation, a large trial, it lasted a number of years. she went into quarantine, she was released, they found her guilty a second time and she spent the last 20 years of her life in quarantine. let me go back to how we are seeing gis being used today for typhoid, then i will talk about quarantine. what some are calling the 21st century equivalent of john snow, scientists are using google earth to map out cholera outbreaks, and are using gene sequencing and global positioning to localized where typhoid is spreading from its source. that brings me to my connection to today. quarantine the venetian word , meaning 40 days, if you look on the news and google things on quarantine,, some good, some bad. i went with a safe one from "the new yorker," stealth kids' movies for the era of quarantine. the word quarantine