Which type of swab is not suitable for the collection of a viral specimen as a result of its ability to interfere with certain tests?

a. Dacron
b. Calcium alginate
c. Cotton
d. Rayon


B
Swab specimens should not contain chemicals or other compounds that may be toxic to cultured cells and are therefore unsuitable for viral specimen collection. Calcium-alginate swabs interfere with polymerase chain reaction (PCR), the recovery of some enveloped viruses, and fluores-cent-antibody tests; therefore they should not be used.

Biology & Microbiology

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