Vaccine Effectiveness, Burden and Impact Studies (VEBIS) of COVID-19 and Influenza – Tender Specifications ECDC/2021/12924  DL 1.3.4. Country specific  SARI surveillance  protocols.  Country-specific SARI surveillance protocol for countries joining for the first  time the ECDC Hospital network SARI surveillance activities, including  description of the setting up of the SARI surveillance in the study sites. The protocols will be in the respective national language(s) of the countries,  unless otherwise agreed with the countries (to be documented and sent to  ECDC), with an English summary.  Dependent on new  countries/study  sites Word  DL 1.3.5. Country specific  vaccine effectiveness  protocols.  Country-specific vaccine effectiveness protocol for countries joining for the first  time the ECDC Hospital network vaccine effectiveness activities, including  description of setting up of the vaccine effectiveness study in the study sites. The protocols will be in the respective national language(s) of the countries,  unless otherwise agreed with the countries (to be documented and sent to  ECDC), with an English summary.  Dependent on new  countries/study  sites Word  DL 1.3.6. Update of SARI  surveillance related  technical documents  (such as TESSy reporting  protocol, TESSy  metadata, definitions). The deliverable refers to methodological work performed at coordination level.  The updates are foreseen as a regular and constant activity through the course  of the project, with the deliverable being formally produced at the indicated  frequency. These are updates to be undertaken in agreement with ECDC and may include  methodological items/aspects such as TESSy reporting protocol, TESSy  metadata, and definitions or a reporting protocol, metadata and definitions. Twice a year  Word – ECDC  template  DL 1.3.7. Update of  vaccine effectiveness  related technical  documents (such as  TESSy reporting protocol,  TESSy metadata,  definitions).  The deliverable refers to methodological work performed at coordination level.  The updates are foreseen as a regular and constant activity through the course  of the project, with the deliverable being formally produced at the indicated  frequency.  These are updates to be undertaken in agreement with ECDC and may include  methodological items/aspects such as TESSy reporting protocol, TESSy  metadata, and definitions or a reporting protocol, metadata and definitions. Twice a year  Word – ECDC  template 