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Community Challenge of Pandemic Influenza. Michael P. Dailey, M.D., FACP North Fulton Regional Hospital Roswell, GA. Pandemic Influenza. Bird Flu Strikes Florida. The Question. Why worry about pandemic influenza?. The Answer. Flu Terms. Seasonal flu – influenza like illness year to year
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Community Challenge of Pandemic Influenza Michael P. Dailey, M.D., FACP North Fulton Regional Hospital Roswell, GA
The Question • Why worry about pandemic influenza?
Flu Terms • Seasonal flu – influenza like illness year to year • Avian flu (AI) – low pathogenicity in birds is common • H5N1 – highly pathogenic AI, deadly to domestic fowl and transmissible to humans • Pandemic flu – virulent human flu that causes global outbreak with little natural immunity
Diagnosis • During influenza season, influenza like illness with cough and fever can be presumed to be influenza Monto et al Arch Int Med 2000;160:3243-3247
H5N1 • Hong Kong 1997 -cluster of human cases associated with poultry Claas et al Lancet 1998;351:472 • Southeast Asia 2003 -outbreaks in 8 Asian countries Ungchusak et al NEJM 2005;352:333 • Indonesia 2005 -human clustering Kandun et al NEJM 2006;355:2186
H5N1 • Turkey 2006 • Great Britain 2007 • As of February 6, 2007 • Total human cases 272 • Deaths 166 • Mortality 61%
MAA Initiative 2006 • John Harvey, M.D. • Matt Gwynne, M.D. • Radio Sandy Springs Interviews • September 11, 2006 – December 18, 2006 • Archived • www.radiosandysprings.com • 7pm Monday • MAA Pandemic Flu Report, January 24, 2007
Summary of Findings Medical Care Groups • Critical A • Patients with respiratory failure due to viral or bacterial pneumonia • Critical B • Identical patients for whom no ventilator support is available • Urgent • Patients requiring hydration or IV antibiotics and anti-emetics who could be sent home • Basic • Uncomplicated influenza needing advice and/or antivirals, but neither critical nor urgent care
Summary of Findings The central issue for pandemic healthcare is how to respond to the loss of our most critical asset, the hospital. How do we evaluate care needs in such a circumstance?
Summary of Findings • Evaluation of Roswell/Alpharetta • Population 150,000 • Mortality 1% • Infected patients 45,000 • Deaths 450
Summary of Findings • Evaluation of Roswell/Alpharetta • Deaths 450 • Critical care pts. 450 x 2 = 900 • Potential hospitalized 450 (50%) • Ventilator needs 450 (over 3 mos.) • Ventilators available 50 • Patients saved by critical care 25
Hydration and Influenza • Dehydration common due to poor fluid intake, fever and rapid mouth breathing Hosker et al BMJ 1994; 308:701 • Dehydration and GI dysfunction VanNieuwenhoven et al Eur J App Phys 2000;83:578 • Airway dehydration and asthma Maloney et al Chest 2002;121:1806 • Dehydration related abdominal pain Shah et al J Coll Physicians Surg Pak 2004;14:14 Dehydration and/or renal dysfunction occurs on 24 to 35% of hospital admissions for influenza
Summary of Findings • Evaluation of Roswell/Alpharetta • Urgent care pts. = 1% of infected 450 • Mortality in urgent care 20% • Potential urgent care save = 360 Save 360 with urgent care vs. 25 by critical care (i.e. > 10:1)
Summary and Conclusions • Fulton County plan is based on hospital being open – the reality is otherwise • The hospital will experience 30-50% staff deficiencies during pandemic • We will need a voluntary plan to provide urgent care at off campus sites • We will need a community committee to develop urgent care plans including MD, hospital, EMS, and city government input
Pandemic Urgent Care • Fluids – 1 liter of NS • IV antibiotics • Ceftriaxone 2 Gm (Rocephin) • Ertapenem 1 Gm (Invanz) if Pen allergic • Antiemetic • Phenergan 12.5 mg • Allergy Kit • Antihistamine • Steroid • Epipen • Pulse Oximetry
Problems • Where will my neighborhood get care? • How will they know where to go? • Who will give it to them? • Who will provide logistic support?
Vaccine • “Barricade vaccine” • “Rampart vaccine” • ED Kilbourne Viral Immunol 2004;17:350 • H5N1 Clade 1 • H5N1 Clade 2 – 3 subclades • Cross protection against death in ferrets • Govorkova et al JID 2006;194:159
Call to Action • We will need a community committee to develop urgent care plans including MD, hospital, EMS, and city government representation • We will need you to provide the care in your community that will make the most difference • It will not be in the hospital