Vaccine Effectiveness, Burden and Impact Studies (VEBIS) of COVID-19 and Influenza – Tender Specifications ECDC/2021/12924  the table to be agreed during monthly teleconferences; cumulative data  presented since the beginning of data collection, pooled and by study site.  The contractor will ensure that all study subjects are tested according to the  protocols (SARI and vaccine effectiveness) with a validated laboratory assay  and will report regularly overview results. Task 4: Summarize findings related to surveillance and to studies  The contractor will summarize findings related to the studies, which include delivering reports on the results of the vaccine effectiveness studies, the annual  report on the results from the SARI surveillance, the annual report on vaccine effectiveness results, as well as draft manuscripts, presentations and brief  summaries on topics related to the ECDC hospital network. Deliverable (DL)  Description  Estimated  frequency/ Volume  File / form at type  DL 1.4.1. Regular  descriptive and analytical  report on results on  vaccine effectiveness  Descriptive and analytical report. Deliverable includes scripts used to create  the analysis report. Cumulative data presented since the beginning of data  collection. Format of the reports to be agreed with ECDC during monthly  conference calls.  The report should include descriptive data on study participants and  recruitment. The descriptive data should also be stratified by vaccine brand  name, site, age group, sex and other relevant variables. Vaccine effectiveness estimates against primary and secondary study outcomes  should also be included by compiling data from each study site and should be  stratified by vaccine brand name, site, age group, sex and other relevant  variables.  Every three  months during the  first 9 months of  the Specific  Contract, then  followed by DL  1.4.3  Word - ECDC  template DL 1.4.2. Annual  epidemiological  descriptive and analytical  report (SARI surveillance)  Descriptive and analytical report. Deliverable includes scripts used to create  the analysis report. Cumulative data presented since the beginning of data  collection. Format of the reports to be agreed with ECDC during monthly  conference calls.  The report should include descriptive and analytical data to respond to the  objectives (primary and secondary) of the SARI surveillance.  On an annual basis  Word - ECDC  template 