“…Vaccination is the best available tool to prevent infectious diseases, even when vaccine immunity is reduced due to age, disease or treatment. It still has the benefit of reducing the likelihood of acquiring severe disease, such as pertussis infection requiring hospitalization or resulting in post-tussive vomiting [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ]. Since patients with chronic disease are often followed by a specialist, an appropriate recommendation by the treating specialist may convince them to get their vaccine with their general practitioner.…”