Colonization of Severe Acute Respiratory Syndrome-Associated Coronavirus Among Health-Care Workers Screened by Nasopharyngeal Swab.

The article presents information on a case study related to colonization of severe acute respiratory syndrome (SARS)-associated coronavirus among health-care workers. Two hundred thirty health care workers were included in the study. The method included examination of nasopharyngeal swab for the presence of severe acute respiratory syndrome-associated coronavirus by two nested reverse transcription- polymerase chain reaction assays. It was found that about 11.5 percent of well-protected health care workers exposed to SARS patients could have colonization without seroconversion.