The efficiency of extracting blood and saliva from each swab type was also tested. Some swabs were significantly
more effective than others for sampling biological materials from different substrates. Swabs with the highest sampling efficiency, however,
often did not have the highest extraction efficiency. Observations were recorded regarding practicality of each swab in a variety of situations.
Our study demonstrates that selection of sampling device impacts greatly upon successful collection and extraction of DNA. We present guidelines
to assist in evaluation of swab choice