October 4, 2011 12:52 am Urban Farming in Vallejo Food-borne illnesses such as Listeria and Salmonella forced a North Bay couple to farm in an urban environment. NBC Bay Area’s Cheryl Hurd reports from Vallejo. US & World Videos 1:35 Kari's forecast: Gradual warming trend 1:53 Median price of Bay Area home up more than 15% from a year ago 0:42 Southbound I-680 in the East Bay reopens after weekend closure 0:56 Telemundo 48 hosts Copita Tournament in San Jose 2:00 Families, activists rally amid ongoing Antioch PD racist texting scandal