Your screening results come back from the lab and they are negative for all possible pathogens. you order a second screening immediately. what is one possible reason for certain organisms to be prematurely (and sometimes wrongly) dismissed from pathogen screens when a microbial disease of the skin is suspected?
a. organisms were present in the sample, but died or were broken down before screeningb. the presence of certain organisms may not seem significant because they are part of the normal skin microbiota. c. samples are taken from areas of active infection or inflammation. d. the technology does not exist to positively identify certain pathological organisms.