Correlated Drug Terms (2)

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	Name (Synonyms)	Correlation
drug1616	No intervention / Evaluation of the ferritin and glycosylated ferritin by standard approved serological tests Wiki	1.00
drug284	BCG Vaccine Wiki	0.58

Correlated MeSH Terms (2)

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	Name (Synonyms)	Correlation
D045169	Severe Acute Respiratory Syndrome NIH	0.05
D018352	Coronavirus Infections NIH	0.04

Correlated HPO Terms (0)

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	Name (Synonyms)	Correlation

Primary Outcomes

Description: Number of participants with COVID-19 disease defined as positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: COVID-19 disease incidence

Time: Measured over the 6 months following randomisation

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Description: Number of participants with severe COVID-19 disease, defined as: COVID-19 disease with hospitalisation, death, or non-hospitalised severe disease. Non-hospitalised severe disease is defined as non-ambulant (*) for ≥ 3 consecutive days OR unable to work (**) for ≥ 3 consecutive days. (*) "pretty much confined to bed (meaning finding it very difficult to do any normal daily activities". (**) "I do not feel physically well enough to go to work"

Measure: Severe COVID-19 disease incidence

Time: Measured over the 6 months following randomisation

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Secondary Outcomes

Description: Number of participants with COVID-19 disease defined as positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: COVID-19 incidence by 12 months

Time: Measured over the 12 months following randomisation

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Description: Number of participants with severe COVID-19 disease, defined as: COVID-19 disease with hospitalisation, death, or non-hospitalised severe disease. Non-hospitalised severe disease is defined as non-ambulant(*) for ≥ 3 consecutive days OR unable to work (**) for ≥ 3 consecutive days. * "pretty much confined to bed (meaning finding it very difficult to do any normal daily activities" ** "I do not feel physically well enough to go to work"

Measure: Severe COVID-19 incidence by 12 months

Time: Measured over the 12 months following randomisation

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Description: Time to first symptom of COVID-19 in a participant who subsequently meets the case definition: positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: Time to first symptom of COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of episodes of COVID-19 disease defined as positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: Episodes of COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of participants with asymptomatic SARS-CoV-2 infection defined as Evidence of SARS-CoV-2 infection (by PCR or seroconversion) Absence of respiratory illness (using self-reported questionnaire) No evidence of exposure prior to randomisation (inclusion serology negative)

Measure: Asymptomatic SARS-CoV-2 infection

Time: Measured over the 12 months following randomisation

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Description: Number of days (using self-reported questionnaire) unable to work (excludes quarantine/workplace restrictions) due to COVID-19 disease defined as positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: Work absenteeism due to COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of days confined to bed (using self-reported questionnaire) due to COVID-19 disease defined as positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: Bed confinement due to COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of days with symptoms in any episode of illness that meets the case definition for COVID-19 disease: positive SARS-Cov-2 test (PCR or serology), plus fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure (using self-reported questionnaire)

Measure: Symptom duration of COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of pneumonia cases (abnormal chest X-ray) (using self-reported questionnaire and/or medical/hospital records) associated with a positive SARS-CoV-2 test

Measure: SARS-CoV-2 pneumonia

Time: Measured over the 12 months following randomisation

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Description: Need for oxygen therapy (using self-reported questionnaire and/or medical/hospital records) associated with a positive SARS-CoV-2 test

Measure: Oxygen therapy with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of admission to critical care (using self-reported questionnaire and/or medical/hospital records) associated with a positive SARS-CoV-2 test

Measure: Critical care admissions with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of days admitted to critical care (using self-reported questionnaire and/or medical/hospital records) associated with a positive SARS-CoV-2 test

Measure: Critical care admission duration with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of participants needing mechanical ventilation (using self-reported questionnaire and/or medical/hospital records) and a positive SARS-CoV-2 test

Measure: Mechanical ventilation with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of days that participants needed mechanical ventilation (using self-reported questionnaire and/or medical/hospital records) and a positive SARS-CoV-2 test

Measure: Mechanical ventilation duration with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of days of hospitalisation due to COVID-19 (using self-reported questionnaire and/or medical/hospital records).

Measure: Hospitalisation duration with COVID-19

Time: Measured over the 12 months following randomisation

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Description: Number of deaths (from death registry) associated with a positive SARS-CoV-2 test

Measure: Mortality with SARS-CoV-2

Time: Measured over the 12 months following randomisation

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Description: Number of participants with fever or respiratory illness will be defined as: fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure, runny/blocked nose (using self-reported questionnaire)

Measure: Fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of episodes of fever or respiratory illness, defined as fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure, runny/blocked nose (using self-reported questionnaire)

Measure: Episodes of fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of days (using self-reported questionnaire) unable to work (excludes quarantine/workplace restrictions) due to fever or respiratory illness defined as fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure, runny/blocked nose (using self-reported questionnaire)

Measure: Work absenteeism due to fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of days confined to bed (using self-reported questionnaire) due to fever or respiratory illness defined as fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure, runny/blocked nose (using self-reported questionnaire)

Measure: Bed confinement due to fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of days with symptoms in any episode of illness that meets the case definition for fever or respiratory illness: fever (using self-reported questionnaire), or at least one sign or symptom of respiratory disease including cough, shortness of breath, respiratory distress/failure, runny/blocked nose (using self-reported questionnaire)

Measure: Symptom duration of fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of pneumonia cases (abnormal chest X-ray) (using self-reported questionnaire and/or medical/hospital records)

Measure: Pneumonia

Time: Measured over the 12 months following randomisation

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Description: Need for oxygen therapy (using self-reported questionnaire and/or medical/hospital records)

Measure: Oxygen therapy

Time: Measured over the 12 months following randomisation

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Description: Number of admission to critical care (using self-reported questionnaire and/or medical/hospital records)

Measure: Critical care admissions

Time: Measured over the 12 months following randomisation

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Description: Number of participants needing mechanical ventilation (using self-reported questionnaire and/or medical/hospital records)

Measure: Mechanical ventilation

Time: Measured over the 12 months following randomisation

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Description: Number of deaths (from death registry)

Measure: Mortality

Time: Measured over the 12 months following randomisation

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Description: Number of days of hospitalisation due to fever or respiratory illness (using self-reported questionnaire, medical/hospital records and/or government registries)

Measure: Hospitalisation duration with fever or respiratory illness

Time: Measured over the 12 months following randomisation

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Description: Number of days of unplanned absenteeism for any reason (using self-reported questionnaire)

Measure: Unplanned work absenteeism

Time: Measured over the 12 months following randomisation

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Description: Cost of hospitalisation due to COVID-19 will be reported and compared between groups (using hospital administrative linked costing records held by individual hospitals and state government routine costing data collections to provide an estimate of the cost to hospitals for each episode of COVID-19 care)

Measure: Hospitalisation cost to treat COVID-19

Time: Measured over the 12 months following randomisation

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Description: Type and severity of local and systemic adverse events will be collected in self-reported questionnaire and graded using toxicity grading scale.

Measure: Local and systemic adverse events to BCG vaccination in healthcare workers

Time: Measured over the 3 months following randomisation

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