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Prevalence of vaccine-preventable infections among HIV-infected children in the UK and Ireland, 1996-2008. H Payne 1 , K Donegan 2 , I Okike 1 , DM Gibb 2 , K Doerholt 1 , PT Heath 1. St Georges’ Healthcare NHS Trust Clinical Trials Unit, Medical Research Council. Aims & Background.

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h payne 1 k donegan 2 i okike 1 dm gibb 2 k doerholt 1 pt heath 1

Prevalence of vaccine-preventable infections among HIV-infected children in the UK and Ireland, 1996-2008

H Payne1, K Donegan2, I Okike1, DM Gibb2,

K Doerholt1, PT Heath1

  • St Georges’ Healthcare NHS Trust
  • Clinical Trials Unit, Medical Research Council.
aims background
Aims & Background
  • To define the burden of vaccine-preventable infections among HIV-infected children in UK and Ireland
  • To consider the implications for vaccination guidelines
  • Vaccines:
    • tools to prevent potentially life-threatening disease
  • Children with HIV more likely to require hospitalisation
  • Vaccine safety in immune-compromised
  • Ability to mount protective responses
  • Audit of 3 London centres, 2009
    • rates of immunisation are very low in children with HIV
method
Method

The Collaborative HIV Paediatric Study (CHIPS)

  • Multicentre cohort of HIV-infected children, since 1996
  • Includes 95% of all children diagnosed in UK and Ireland

Data Analysis

  • Hospitalisations of all pneumococcal & varicella from 1996-2008
  • Demographic and clinical baseline data
  • Microbiological confirmation for pneumococcal disease
results
Results
  • 1571 children reported to CHIPS (Dec 2008)
  • Total of 3761 hospital admissions
    • 17 due to IPD (4 confirmed serotypes: 23F, 9V, 19F)
    • 187 due to Varicella (80 Zoster & 107 Chicken Pox)
  • Total days of admission IPD and Varicella: 1334
  • None of the children admitted with IPD had received either pneumococcal vaccination
results1
Results
  • Characteristics of those admitted (median):
results2
Results
  • No difference between those who acquired IPD or varicella and other HIV-infected children:
    • median age at diagnosis of HIV
    • CD4% at diagnosis or start of HAART
  • However, CDC staging at HIV diagnosis:
percentage of vaccine preventable infections of all paediatric hiv admissions 1996 2008
Percentage of vaccine-preventable infections of all paediatric HIV admissions: 1996-2008

↑ PCV 2006

Varicella

Pneumococcus

incidence rate for hospitalisations compared to healthy children
Incidence rate for hospitalisations compared to “healthy” children

www.hpa.org.uk

summary
Summary
  • Considerable burden of morbidity from vaccine-preventable infections
    • Majority of burden due to varicella infections
  • Substantial increased risk compared with “healthy” children
  • Children with IPD or varicella hospitalisation:
    • More advanced CDC staging at HIV diagnosis
    • Only 12% admitted with IPD were on HAART
  • Update national vaccination guidelines
    • pneumococcal & varicella vaccinations to be offered to all HIV-infected children
  • Subsequent evaluation will assess the impact of these guidelines
slide10
ACKNOWLEDGEMENTS:

Funding: NSHPC is funded by the Health Protection Agency, and has also received support from the UK Department of Health and

the Medical Research Council. CHIPS is funded by the Department of Health and in the past received additional support from

Bristol-Myers Squibb, Boehringer Ingelheim, GlaxoSmithKline, Roche, Abbott, and Gilead.

Committees and participants (in alphabetical order):

CHIPS Steering Committee: K Butler, K Doerholt, S Donaghy, DT Dunn, T Duong, DM Gibb, A Judd, EGH Lyall, J Masters, E

Menson, V Novelli, C Peckham, A Riordan, M Sharland, D Shingadia, PA Tookey, G Tudor-Williams, G Wait

MRC Clinical Trials Unit: DT Dunn, T Duong, L Farrelly, DM Gibb, D Johnson, A Judd, G Wait, AS Walker

National Study of HIV in Pregnancy & Childhood, Institute of Child Health: J Masters, C Peckham, PA Tookey

We thank the staff, families & children from the following hospitals who participate in CHIPS (in alphabetical order):

Republic of Ireland:Our Lady's Children’s Hospital Crumlin, Dublin: K Butler, A Walsh.

UK: Birmingham Heartlands Hospital, Birmingham: Y Heath, J Sills; BlackpoolVictoria Hospital, Blackpool: N Laycock; Bristol

Royal Hospital for Children, Bristol: A Finn, A Foot,L Hutchison; Central Middlesex Hospital, London: M Le Provost, A Williams;

Chase Farm Hospital, Middlesex; Chelsea and Westminster Hospital, London: D Hamadache, EGH Lyall, P Seery; Ealing

Hospital, Middlesex: V Shah, KSloper; GlasgowRoyal Hospital for Sick Children, Glasgow: C Doherty, R Hague; Great

Ormond St Hospital for Children, London: M Clapson, S Fasolo, J Flynn, DM Gibb, N Klein, K Moshal, V Novelli, D Shingadia;

Hillingdon Hospital, London; Homerton University Hospital, London: D Gurtin; John Radcliffe Hospital, Oxford: A Pollard, S

Segal; King's College Hospital, London: C Ball, S Hawkins, D Nayagam; Leeds General Infirmary, Leeds: P Chetcuti; Leicester

Royal Infirmary, Leicester: M Green, J Houghton; Luton and Dunstable Hospital, Luton: M Connan, M Eisenhut; Mayday

University Hospital, Croydon: J Baverstock, J Handforth; Milton Keynes General Hospital, Milton Keynes: PK Roy; Newcastle

General Hospital, Newcastle: J Clarke, K Doerholt, C Waruiru; Newham General Hospital, London: C Donoghue, E Cooper, S

Liebeschuetz, S Wong; Ninewells Hospital and Medical School, Dundee: T Lornie; North Manchester General Hospital,

Manchester: C Murphy, T Tan; North Middlesex Hospital, London: J Daniels, EGH Lyall, B Sampson-Davis;Northampton

General Hospital, Northampton: F Thompson; Northwick Park Hospital Middlesex; M Le Provost, A Williams; Nottingham City

Hospital, Nottingham: D Curnock, A Smyth, M Yanney; Queen Elizabeth Hospital, Woolwich: W Faulknall, S Mitchell; Royal

Belfast Hospital for Sick Children, Belfast: S Christie; Royal Edinburgh Hospital for Sick Children, Edinburgh: J Mok; Royal

Free Hospital, London: S McKenna, V Van Someren; Royal Liverpool Children’s Hospital, Liverpool: C Benson, A Riordan;

Royal London Hospital, London: B Ramaboea, A Riddell; Royal Preston Hospital, Preston: AN Campbell; Sheffield Children's

Hospital, Sheffield: J Hobbs, F Shackley; St George's Hospital, London: R Chakraborty, S Donaghy, Fluke, M Sharland,S Storey,

C Wells; St Mary's Hospital, London: D Hamadache, C Hanley, EGH Lyall, G Tudor-Williams, C Walsh, S Walters; St Thomas‘

Hospital, London: R Cross, G Du Mont, E Menson; University Hospital Lewisham, London: D Scott, J Stroobant; University

Hospital of North Staffordshire, Stoke On Trent: P McMaster;University Hospital of Wales, Cardiff: B O' Hare; Wexham

Park, Slough: R Jones; Whipps Cross Hospital, London: K Gardiner; Whittington Hospital, London.