Provide tracing and backtracking

Contact tracing (also known as partner notification) is a primary means of controlling infectious diseases such as tuberculosis (TB), human immunodeficiency virus (HIV), and sexually transmitted diseases (STDs). Contact tracing has also played an important role in controlling the COVID-19 spread. Backtracing is similar to contact tracing, but concentrates on tracing back the movements of infected persons. Similar functionality may be required in other types of

Condición inestable que implica un cambio inminente, brusco o notable que requiere atención y medidas urgentes para proteger la vida, los recursos, la propiedad o el medioambiente.
 

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, e.g. terrorism, or massive public disorder.