What Role Do DNA Strands Play in Identifying Pathogen Strains?
DNA strands help in distinguishing between different strains of pathogens. Variations in the genetic sequences of pathogens can indicate different strains with varying levels of virulence, transmissibility, and drug resistance. By comparing the DNA sequences of pathogens from different cases, epidemiologists can identify the source of an outbreak, track its spread, and determine the links between cases. This information is vital for implementing targeted public health interventions.