Many digital solutions mainly involving Bluetooth technology are being
proposed for Contact Tracing Apps (CTA) to reduce the spread of COVID-19.
Concerns have been raised regarding privacy, consent, uptake required in a
given population, and the degree to which use of CTAs can impact individual
behaviours. However, very few groups have taken a holistic approach and
presented a combined solution. None has presented their CTA in such a way as to
ensure that even the most suggestible member of our community does not become
complacent and assume that CTA operates as an invisible shield, making us and
our families impenetrable or immune to the disease. We propose to build on some
of the digital solutions already under development that, with addition of a
Bayesian model that predicts likelihood for infection supplemented by
traditional symptom and contact tracing, that can enable us to reach 90% of a
population. When combined with an effective communication strategy and social
distancing, we believe solutions like the one proposed here can have a very
beneficial effect on containing the spread of this pandemic
