Nasal swabs a. Use a long swab and reach deep into the nasal cavity. Swabs to be used for virus FA specimens must penetrate the mucus layer to retrieve epithelial cells.
Lung a. Take a generous portion of lung, fresh, in a sterile plastic bag.
Chill, do not freeze. Do not add glycerin. A thin slice of lung in formalin. Include normal and abnormal tissue at the edge of the lesion. Keep swabs moist and refrigerated before and during shipment.