Inclusion criteria: 1. Age (≥ 18 years) 2. Decision-making male and female Subjects 3. Has there been influenza, or SARS-CoV-2, or Pneumococcal vaccination (collective 1 + 2) or already fixed vaccination date with an influenza, or SARS-CoV-2, or pneumococcal vaccination (Collective 1) 4. Written, signed and dated Declaration of consent to participate in the clinical examination after prior written and oral explanation 5. Only applicable to subjects in collective 1: negative urine / serum pregnancy test Women of childbearing age

Inclusion criteria: 1. Age (≥ 18 years) 2. Decision-making male and female Subjects 3. Has there been influenza, or SARS-CoV-2, or Pneumococcal vaccination (collective 1 + 2) or already fixed vaccination date with an influenza, or SARS-CoV-2, or pneumococcal vaccination (Collective 1) 4. Written, signed and dated Declaration of consent to participate in the clinical examination after prior written and oral explanation 5. Only applicable to subjects in collective 1: negative urine / serum pregnancy test Women of childbearing age