Coronavirus disease (COVID-19) technical guidance by WHO Investigation protocol for COVID-19 | Page 13

5 Reporting of findings 5.1 Reporting Any investigation of this nature should include reporting on the following information: (1) the number of households and the number of individuals included; (2) the age and sex of all individuals included (3) the time in the outbreak of sample collection and the antibody titre levels of each specimen collected (4) the number of individuals with serologic evidence of COVID-19 virus infection. If sample size permits, these numbers should be stratified by age (5) the number of individuals with serologic evidence of COVID-19 virus infection who have reported symptoms It is also important to fully document the study design, how individuals were recruited, and the serological assay and methods used to ensure that data can be pooled to increase power in estimating epidemiological parameters. Ideally, information would be collected in a standardized format according to the questionnaires and tools in this generic protocol to assist with data harmonization and comparison of results (see forms in Appendix A). To enable results to be aggregated across study sites and across county sites and by extension, strengthen the statistical power of the results, it is expected that they are shared with WHO by sending individual, de-identified data to [email protected]. The data shared should include only the study identification number and not any personably identifiable information. 13