title: [Adverse effects of the herd immunity or when childhood vaccination becomes deleterious for the epidemiology of infectious diseases in adults].
abstract: The irremediable ageing of the world population, the aged-related increasing in the prevalence of infectious diseases the fear of any influenza pandemic rife have recently led the European Union Geriatric Medicine Society (EUGMS) et the International Association of Geriatric and Gerontology European Regions (IAGG-ER) of establishing vaccine recommendations dedicated to individuals aged of 60 years or above and promoting a life-course vaccination programme. This approach is mainly motivated by the herd immunity-associated effect on the epidemiology of infectious diseases observed within the adult and old adult population. This review (1) after a presentation of the concept and its demonstrated beneficial effects; (2) will detail that herd immunity acts with adverse effects on the epidemiology of the infectious diseases in the adult and aged individual population; (3) in order to demonstrate that maintaining a vaccine pressure in every age groups is imperative.
authors.affiliation: Département de réhabilitation et gériatrie, Hôpital des Trois-Chêne, Thônex-Genève, Suisse. pierre.o.lang@hcuge.ch
authors.forename: Pierre-Olivier
authors.initials: PO
authors.lastname: Lang
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D003141:Communicable Diseases / Q000453:epidemiology* / Q000276:immunology*; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000008:administration & dosage / Q000276:immunology; D058872:Epidemics / Q000517:prevention & control*; D005602:France; D006801:Humans; D032521:Immunity, Herd / Q000276:immunology*; D007115:Immunization Schedule; D007117:Immunization, Secondary; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000276:immunology; D007251:Influenza, Human / Q000276:immunology / Q000517:prevention & control; D008875:Middle Aged; D022242:Pneumococcal Vaccines / Q000008:administration & dosage / Q000276:immunology; D011018:Pneumonia, Pneumococcal / Q000276:immunology / Q000517:prevention & control; D014611:Vaccination / Q000379:methods*
chemical_list: C414006:23-valent pneumococcal capsular polysaccharide vaccine; D015721:Diphtheria-Tetanus-Pertussis Vaccine; D007252:Influenza Vaccines; D022242:Pneumococcal Vaccines