the meantime. hunter. i ll put it here. no problem. okay. the fact that hunter didn t sit down means i m negative. reporter: the numbers of schools and staff out with covid are high. the hope here is that conditions can be made safer with the help of these four-legged warriors. are these dog patrols used elsewhere? i understand it is being done in localities. the most prominent is miami-dade county where fiu, florida international university, where the research taking place is located. will this grow across the country, i don t know. but the sheriff in the story, he says he s going to start lobbying members of congress to fund sheriff s departments around the country so they can all afford a covid k-9 program. appreciate it.
reporter: so basically the training is the dogs sniff masks that had been positive for covid-19? correct. reporter: that s how they got their training? correct. if i take off my mask, hunter can smell my mask and tell me if i have covid? correct. reporter: let me take it off. i ll put this other one on in the meantime. hunter? i ll put it here. no problem. reporter: okay. the fact that hunter didn t sit down means i m negative, which i knew when the day started. all right, hunter. the numbers of schools and staff out with covid are high. the hope here is that conditions can be made safer with the help of these four-legged warriors. are these dog patrols used elsewhere? reporter: it is being done in localities. the most prominent is miami-dade county where fiu, florida international university, where the research taking place is located.