They are not extinct: https://www.theguardian.com/us-news/2017/sep/05/hookworm-lowndes-county-alabama-water-waste-treatment-poverty https://www.theguardian.com/

They are not extinct: https://www.theguardian.com/us-news/2017/sep/05/hookworm-lowndes-county-alabama-water-waste-treatment-poverty https://www.theguardian.com/us-news/2017/sep/05/hookworm-low...