Evidence:  CV, a language certificate or past experience in English such as working in an English- speaking environment, appropriate level of studies or English as mother tongue or other official  proof and annual declaration of interest (see section 4. Annexes)  The objective of this section is to ensure that the tenderer is technically capable to perform the contract.  This involves two aspects: the capacity of the economic operators (A) and the capacity of the team  available to deliver the service (B).  Project references consist in a list of relevant services provided in the past number of years indicated in  the criterion, with the sums, dates and clients, public or private.  Tenderers (in case of a joint tender the combined capacity of all members of the group and identified  subcontractors) must comply with the criteria listed below. -  Criterion A1 LOT 4 : Experience in the field of vaccine effectiveness and healthcare registries. At least  three publications on healthcare registries with data related to infectious diseases in the last five years are  required, of those at least two from a study carried out in a relation to vaccine effectiveness.  Evidence A1 LOT 4:  References for at least three publications on healthcare registries with data related to  infectious diseases over the last five years are required, of those at least two from a study carried out in a  relation to vaccine effectiveness , either official reports or publications in peer-reviewed journals.  -  Criterion A2 LOT 4 : Capacity to produce reports in English (C1 equivalent 28 ).  Evidence A2 LOT 4: One document of at least 10 pages presenting outcome of observational studies  (report, study, etc.) in English it has drafted and published or delivered to a client in the last five years. -  Criterion A3 LOT 4:  Capacity to work on international/multi-country projects related to the scope of the  lot with at least three EU/EEA countries included. Evidence A3 LOT 4:  Reference for at least one international/multi-country project delivered in the last five  years explaining the cross-border element and which countries that were involved.  The team delivering the service should include, as a minimum, the profiles listed below. Evidence will consist in CVs (preferably in Europass format) of the team responsible to deliver the service.  Each CV should indicate the intended function in the delivery of the service, work experience, education  and training, and organisational and technical skills.  The definition of minimum profiles guarantees that, during contract performance, if a person leaves the  project, it will be replaced by someone fulfilling the below defined minimum criteria.  A minimum of six profiles must be included in the offer for this lot  28 See http://www.coe.int/t/dg4/linguistic/Cadre1_en.asp  33  B. Criteria relating to the team delivering the service A. Criteria relating to tenderers  3.2.7 LOT 4: Technical and professional capacity criteria