Inclusion Criteria:  Participants willing to complete community-based symptom screening, finger-prick and venepuncture blood sampling, urine testing, and/or undergo TB and/or COVID-19 diagnostic testing. Provision of informed consent. Participant 18 years or above. HIV-positive or negative participants will be included.  Exclusion Criteria:  Inability to provide informed consent (e.g., mentally impaired). Participants who have completed TB treatment in the last two months, or who have self-presented to their local TB clinic and are currently being worked up for suspected TB. Participants already diagnosed with active TB on treatment. Participants unable to commit to at least a two-month follow-up. Female participants who are pregnant or who refuse a urine pregnancy test. Participants in the community who cannot access healthcare due to severe ill health or lack of access to the local clinic.