Show the selected vocabularies in the table:

Identifier Preferred Label Frequency Covered text Add search term
id_onset symptom onset 1 symptom onset concept:onset
id_age age categories 4 age, children, adults concept:age
id_gender gender 2 male, female concept:gender
id_asymptotic asymptotic cases 2 asymptomatic concept:asymptotic
id_transmission Transmission 2 transmission concept:transmission
id_contact contact tracing 1 parents concept:contact