Résumé
The Sickle Cell Society have issued standards for additional immunisations that adults with sickle cell disease (SCD) require. These include annual influenza, 5-yearly pneumococcal conjugate vaccine (PPV23) and Hepatitis B vaccination. Patients who have not received their primary vaccination as part of the national schedule in the UK should also receive further additional vaccines. We reviewed whether adults with SCD in South Wales currently receive these. 49 adult patients were identified as having SCD under the care of the Hereditary Anaemia Service based in the University Hospital of Wales, Cardiff. GP records were not available for 5 patients leaving a final cohort of 44 patients to analyse. Average age was 33 years (range 17-67). Median age was 27 with the cohort predominantly lying in the 17-29 year category (52%). Results showed good compliance with the annual influenza vaccine in those over 40 (>80%). However, compliance for the 17-29 category and 30-39 categories were 37.5% and 42.8%, respectively. The improved compliance in those >40 was not seen with the 5-yearly pneumococcal vaccine. Compliance was worse in all age groups compared to the annual flu vaccine with only 23% compliance overall. However, when looking at those who had received a single dose of PPV23, the numbers improved to nearly 60%. Compliance with the SARS-CoV2 vaccination was highest at 61.3%. However, rates were lower in the 17-29 and 30-39 age groups in keeping with previous trends. Only 34.1% of patients had full hepatitis B cover. Again, trends in compliance mirrored previous with poorer rates in those under 40. Assessing compliance for the remainder of the standards was more challenging given that we could not confirm retrospectively how many of our cohort had received their primary vaccinations in other parts of the UK, thought to be around half. However, most of the cohort had not received any additional vaccines suggesting high non-compliance regardless. This review looked at data from 2020 and likely reflects the impact of the SARS-CoV2, whether positive or negative. The reduced compliance in 5-yearly pneumococcal compared to flu suggest better health-professional education is needed;if patients are attending for their annual flu vaccine, there is ample opportunity to administer other vaccines. The vaccination rate for our patient group is comparable to national rates by ethnicity although lower than the national average for age. Vaccination rates for the SCD population of South Wales are not adequate. Better education and engagement is needed.