# ContactTracingDataType Schema ```txt https://covid19.admin.ch#/definitions/ContactTracingIncomingData/properties/type ``` COVID19CT_Entry - Additionally in quarantine: People who have entered Switzerland from high-risk countries COVID19CT_Qua - In quarantine: People who have had contact with infected people COVID19CT_Iso - In isolation: People who have tested positive for the coronavirus COVID19CT_reporting_cantons - Number of cantons providing data. | Abstract | Extensible | Status | Identifiable | Custom Properties | Additional Properties | Access Restrictions | Defined In | | :------------------ | ---------- | -------------- | ----------------------- | :---------------- | --------------------- | ------------------- | ----------------------------------------------------------------------------- | | Can be instantiated | No | Unknown status | Unknown identifiability | Forbidden | Allowed | none | [sources.schema.json\*](../schema/sources.schema.json "open original schema") | ## type Type `string` ([ContactTracingDataType](sources-definitions-contacttracingdatatype.md)) ## type Constraints **enum**: the value of this property must be equal to one of the following values: | Value | Explanation | | :------------------------------ | ----------- | | `"COVID19CT_Entry"` | | | `"COVID19CT_Iso"` | | | `"COVID19CT_Qua"` | | | `"COVID19CT_reporting_cantons"` | |