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investigators to replicate them. As Drs. Chia and Chia hypothesize [1], localized tissue infection, such as cytomegalovirus (CMV) viremia, could be present in persons with CFS, but CMV viruria and localized CMV mucosal infection, as well as localized mucosal Epstein-Barr virus infection, are often present in asymptomatic persons. Drs. Chia and Chia may want to associate an infectious agent found anywhere on a mucosal surface or specimen with the underlying illness. Medical science shows that such thinking is neither correct nor meets standards of scientific rigor. In addition, the published abstract concerned with enterovirus detection that was cited by Chia and Chia [2] included 4 control subjects. RT-PCR is technically demanding, and extreme rigor is required to exclude artifacts of amplification. Therefore, we await confirmation of the results of their findings, including blinded assays on specimens from matched control subjects. We certainly agree that further research is needed and that the infectious agents listed by Chia and Chia [1] are reasonable to study. Rigorous studies that help provide new insights into the etiology of CFS and help develop treatments for the many individuals with CFS are urgently needed. David M. Koelle,2,5 Serge Barcy,4 Meei-li Huang,4 Rhoda L. Ashley,1 Lawrence Corey,1,2,4 Judy Zeh,3 Suzanne Ashton,2 and Dedra Buchwald2 Departments of 1Laboratory Medicine, 2Medicine, and 3Statistics, University of Washington, 4 Fred Hutchinson Cancer Research Center, and 5Harborview Medical Center, Seattle, Washington References 1. Chia JKS, Chia A. Diverse etiologies for chronic fatigue syndrome [letter]. Clin Infect Dis 2003; 36:671–2 (in this issue). 2. Chia JK, Jou NS, Najera L, et al. The presence of enteroviral RNA (EV RNA) in peripheral blood mononuclear cells (PBMC) of patients with the chronic fatigue syndrome (CFS) associated with high levels of neutralizing antibodies to enteroviruses [abstract 405]. Clin Infect Dis 2001; 33:1157. Reprints or correspondence: Dr. David M. Koelle, Dept. of Medicine, Harborview Medical Center Mail Stop 359690, 325 Ninth Ave., Seattle, WA 98104 ([email protected]). Clinical Infectious Diseases 2003; 36:672–3 2003 by the Infectious Diseases Society of America. All rights reserved. 1058-4838/2003/3605-0021$15.00 Removing Hospitalization as a Barrier to Immunization Sir—We read the editorial by Poland [1] and agreed with many of his excellent points in regard to influenza immunization practices. He provides an excellent review of current practices, the strengths and weaknesses of published findings regarding influenza vaccination, and the implications of these findings for patient care. We would like to share some of our thoughts concerning this commentary and some of our experiences in trying to improve vaccination rates in our hospital. The author correctly identifies physicians and the health care system as barriers to improving vaccination rates and saving lives. Isn’t it ironic that patients can authorize their own vaccinations in grocery stores, pharmacies, and shopping malls but that patients in hospitals who are at risk for influenza can not be vaccinated until the doctor writes a medication order? Grabenstein [2] published an excellent review of vaccination myths that are oftentimes perpetuated by well-meaning health care organizations and professionals. In our practice, we frequently encounter providers who contribute unwittingly to misbeliefs that discourage vaccination. Overcoming these myths requires diligent, well-planned, and consistent educational efforts. In addition to education, it is often necessary to develop programs that minimize or eliminate the potential for these misconceptions to prevent at-risk patients from receiving needed vaccines. We appreciate Poland’s thoughts regarding how we might achieve universal influenza vaccination. As Poland [1] stated, the use of standing orders, nursebased screening, and chart reminders for physicians has been shown to be effective. Recently, we published our experience with incorporating pneumococcal immunization screening into critical pathways [3]. Although numerous tools or mechanisms for improving immunization rates exist [4], we believe that the establishment of a consistent, systematic process for immunization assessment and vaccine administration is more important than the methods employed. A system that identifies all at-risk patients and clearly assigns responsibility for patient monitoring and follow-up is critical for success. Handoffs of patients from one health care professional to another or from an inpatient setting to an ambulatory care setting must be avoided. Whoever identifies a patient who needs vaccination should have the authority, knowledge, and responsibility to act. Otherwise, yet another vaccination opportunity may be missed. Finally, we would encourage everyone concerned with improving immunization rates to consider including pharmacists as important partners in such efforts. Since pharmacists are skilled at medication counseling, they can be especially effective as immunization educators. A recent position paper published by the American College of Physicians–American Society of Internal Medicine advocated “the use of the pharmacist as immunization source, host of immunization sites, and immunizer” [5, p. 82]. Given the dismal national immunization figures and the lofty Healthy People 2010 goals [6], pharmacists in hospitals, clinics, and the community are in a great position to be important contributors to this great cause. We would also agree with Poland [1] that Medicare and other insurers should reimburse physicians fairly for the costs of vaccination. Furthermore, we believe that many groups of health care professionals (in particular, nurses, nurse practitioners, and pharmacists) should be recognized as providers of this important service and should be appropriately compensated. In conclusion, we salute Poland’s [1] ideas regarding the prevention of avoidable influenza-associated morbidity and CORRESPONDENCE • CID 2003:36 (1 March) • 673 mortality. The elimination of myths and barriers to vaccination for patients and health care professionals will go a long way toward making this high-impact, seemingly simple goal a reality. Mark Woods and Jill T. Robke Pharmacy Department, Saint Luke’s Hospital, Kansas City, Missouri References 1. Poland GA. If you could halve the mortality rate, would you do it? Clin Infect Dis 2002; 35: 378–80. 2. Grabenstein JD. Vaccine misconceptions and inappropriate contraindications lead to preventable illness and death. Hosp Pharm 1998; 33:1557–67. 3. Robke JT, Woods M, Heitz S. Pharmacist impact on pneumococcal vaccination rates through incorporation of immunization assessment into critical pathways in an acute care setting. Hosp Pharm 2002; 37:1050–4. 4. Fedson DS, Houck P, Bratzler D. Hospitalbased influenza and pneumococcal vaccination: Sutton’s law applied to prevention. Infect Control Hosp Epidemiol 2000; 21:692–9. 5. Keely JL. Pharmacist scope of practice. Ann Intern Med 2002; 136:79–85. 6. Healthy People 2010. Healthy people 2010: understanding and improving health. November 2000. Available at: http://www.healthypeople. gov/publications/default.htm. Accessed 12 September 2002. Reprints or correspondence: Dr. Mark Woods, Pharmacy Dept., St. Luke’s Hospital, 4401 Wornall Rd., Kansas City, MO 64111 ([email protected]). Clinical Infectious Diseases 2003; 36:673–4 2003 by the Infectious Diseases Society of America. All rights reserved. 1058-4838/2003/3605-0022$15.00 signs responsibility for patient monitoring and follow-up is critical for success” [1, p. 673]. These are highly significant statements and I could not agree more with the assessment of Woods and Robke. The issue is how to institutionalize such critical pathways for vaccination as clearly defined procedures in the variety of health care settings in which vaccinations can or should be provided. Although this means that the health care system must engage in the hard work of defining and codifying such critical pathways, the reward is great. In fact, no other medical maneuver is as cost-effective as the prevention of disease by immunization. We must clearly recognize the opportunity to save tens of thousands of lives annually through the simple administration of a vaccine. Woods and Robke [1] also highlight the inclusion of pharmacists as partners in immunization efforts. Again, I agree that pharmacists can be effective immunization educators. Partnerships throughout the health care professional continuum can only increase the opportunities to intervene successfully and to provide, not only education, but the vaccines themselves. My hope is that health care professionals would take the opportunity to save lives with a maneuver as simple as vaccination so seriously that they would themselves become advocates for incorporating critical pathways and systems into the settings in which they practice. Reply Gregory A. Poland Sir—The letter by Woods and Robke [1] in response to my article entitled “If You Could Halve the Mortality Rate, Would You Do It?” [2] offers several excellent and important points that deserve highlighting. In particular, the authors stress their experience with the use of critical pathways to increase screening for pneumococcal immunization. Woods and Robke state that “the establishment of a consistent, systematic process for immunization assessment and vaccine administration is…important” and that “a system that identifies all at-risk patients and clearly as- Mayo Vaccine Research Group, Departments of Medicine, Infectious Diseases, and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota Reference 1. Woods M, Robke JT. Removing hospitalization as a barrier to immunization [letter]. Clin Infect Dis 2003; 36:673–4 (in this issue). 2. Poland GA. If you could halve the mortality rate, would you do it? Clin Infect Dis 2002; 35: 378–80. 674 • CID 2003:36 (1 March) • CORRESPONDENCE Reprints or correspondence: Dr. Gregory A. Poland, Mayo Vaccine Research Group, Depts. of Medicine, Infectious Diseases, and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905 ([email protected]). Clinical Infectious Diseases 2003; 36:674 2003 by the Infectious Diseases Society of America. All rights reserved. 1058-4838/2003/3605-0023$15.00 Diagnosis of Rabies by Use of Brain Tissue Dried on Filter Paper Sir—Rabies surveillance and reporting are poor in developing countries, and most governments fail to appreciate either the public health or the economic burden imposed by human and animal rabies [1]. Although postmortem diagnosis of rabies can easily be made by fluorescent antibody testing (FAT) of a brain impression smear, such analysis is of limited availability in developing countries [1]. Moreover, transfer of the specimens to the laboratory for performance of FAT must be done within 24 h after specimens were collected, before the brain starts to decompose [2]. Alternatively, brain tissue can be stored frozen at the collection site and during transport. However, this is not always possible in remote areas where the availability of electricity remains problematic. A simple method for analysis of HIV RNA level in blood spotted on filter paper has been described previously [3]. We report that both nucleic acid sequence-based amplification (NASBA) and RT-PCR can detect rabies virus RNA in brain tissue that has been dried on filter paper and stored for 222 days. Samples of 10 control dog brains and 10 rabies-infected dog brains were obtained from the rabies diagnostic unit at Queen Saovabha Memorial Institute (Bangkok, Thailand). The temperature of the samples was kept at ⫺80C until analysis was performed. Ten milligrams of each brain tissue sample was spotted on filter paper (product no. 903; Schleicher & Schuell). The samples were allowed to thoroughly saturate the filter paper, which was then air dried for 12 h. The filter paper was overlaid by a wraparound cover, which was then enclosed in a paper en-