disease onset/diagnosis measurement infection onset/diagnosis measurement 2014-05-27T10:58:12Z Any measurement which expresses a quantity related to the beginning, early stages or development of an infection or to the official determination of an infection as the cause of the observed symptom(s). An infection is the invasion and multiplication of microorganisms such as bacteria, viruses, or parasites in body tissues, especially that causing local cellular injury due to competitive metabolism, toxins, intracellular replication, or antigen-antibody response. CMO:0002366 JSmith Not4Curation clinical_measurement_ontology