Dr. Laszlo Madaras is chief medical officer of the Migrant Clinicians Network and a clinical assistant professor at Penn State College of Medicine. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. L. Madaras and Others. Social Distance and Mobility — A 39-Year-Old Pregnant Migrant Farmworker. N Engl J Med 2019;380:1093-1096.