She took several swabs, but her hands were shaking when she started to prepare the slides.
The doctor took swabs from the inside of her cheek and off her tongue.
One way of telling whether a horse has completely eliminated the infection is to take follow-up nasal swabs.
They take swabs and she suffers numerous interviews before she is allowed to return home.
Police found no evidence of bomb-making, but they took swabs from under the fingernails of the family.
But as you know is routine,' she continued, 'we took swabs and did the analysis on the stomach contents.
We took vaginal, oral, and anal swabs, and we'll know about that in a half hour or so.
In March it kept inspectors from taking swabs and radioactivity readings to ascertain whether any reprocessing had occurred over the past year.
"You need to take immediate mouth and nasal swabs to determine if they were exposed," the toxins expert was instructing.
Still another test involves taking nasal swabs from people who may have been exposed.