Forest W. Arnold, D.O., M.Sc., FIDSA

Forest Arnold, D.O.

Forest W. Arnold, D.O., M.Sc., FIDSA

UofL Physicians Outpatient Center
401 East Chestnut Street, Ste. 310
Louisville, KY 40202

502-852-3836 - Academic Office
502-588-4600- Patient Appointments


Clinical Expertise
Infectious Diseases


Board Certifications

  • American Board of Internal Medicine -
    Infectious Diseases

Education and Training

  • Medical School: West Virginia School of Osteopathic Medicine
  • Internship: West Virginia University
  • Residency: University of Tennessee Medical Center
  • Fellowship: University of Louisville
  • M.Sc.: University of Louisville

Featured Publications

  • Arnold FW, Beavin LA. Increased Methicillin-Resistant Staphylococcus aureus Septicemia and Illicit Intravenous Drug Use in the South. Clin Infect Dis. 2018 Jul 2;67(2):319-320. doi: 10.1093/cid/ciy116. PubMed PMID: 29462274.
  • Arnold FW, Lopardo G, Wiemken TL, Kelley R, Peyrani P, Mattingly WA, Feldman C, Gnoni M, Maurici R, Ramirez JA; Community-Acquired Pneumonia Organization (CAPO). Macrolide therapy is associated with lower mortality in community-acquired bacteraemic pneumonia. Respir Med. 2018 Jul;140:115-121. doi:  10.1016/j.rmed.2018.05.020. Epub 2018 Jun 5. PubMed PMID: 29957272.
  • Wiemken TL, Furmanek SP, Mattingly WA, Wright MO, Persaud AK, Guinn BE, Carrico RM, Arnold FW, Ramirez JA. Methods for computational disease surveillance in infection prevention and control: Statistical process control versus Twitter's anomaly and breakout detection algorithms. Am J Infect Control. 2018 Feb;46(2):124-132. doi: 10.1016/j.ajic.2017.08.005. Epub 2017 Sep 12. PubMed PMID: 28916373.
  • Peyrani P, Wiemken TL, Metersky ML, Arnold FW, Mattingly WA, Feldman C, Cavallazzi R, Fernandez-Botran R, Bordon J, Ramirez JA. The order of administration of macrolides and beta-lactams may impact the outcomes of hospitalized patients with community-acquired pneumonia: results from the community-acquired pneumonia organization. Infect Dis (Lond). 2018 Jan;50(1):13-20. doi: 10.1080/23744235.2017.1350881. Epub 2017 Jul 12. PubMed PMID: 28699429.
  • Ramirez JA, Wiemken TL, Peyrani P, Arnold FW, Kelley R, Mattingly WA, Nakamatsu R, Pena S, Guinn BE, Furmanek SP, Persaud AK, Raghuram A, Fernandez F, Beavin L, Bosson R, Fernandez-Botran R, Cavallazzi R, Bordon J, Valdivieso C, Schulte J, Carrico RM; University of Louisville Pneumonia Study Group. Adults Hospitalized With Pneumonia in the United States: Incidence, Epidemiology, and Mortality. Clin Infect Dis. 2017 Nov 13;65(11):1806-1812. doi: 10.1093/cid/cix647. PubMed PMID: 29020164.
  • Aljuboori Z, Hruska R, Yaseen A, Arnold F, Wojda B, Nauta H. Fungal brain abscess caused by "Black Mold" (Cladophialophora bantiana) - A case report of successful treatment with an emphasis on how fungal brain abscess may be different from bacterial brain abscess. Surg Neurol Int. 2017 Apr 5;8:46. doi: 10.4103/sni.sni_448_16. eCollection 2017. PubMed PMID: 28480108; PubMed Central PMCID: PMC5402337.
  • Arnold FW. How Antibiotics Should be Prescribed to Hospitalized Elderly Patients with Community-Acquired Pneumonia. Drugs Aging. 2017 Jan;34(1):13-20. doi: 10.1007/s40266-016-0423-9. Review. PubMed PMID: 27928779.
  • Wiemken TL, Kelley RR, Fernandez-Botran R, Mattingly WA, Arnold FW, Furmanek SP, Restrepo MI, Chalmers JD, Peyrani P, Cavallazzi R, Bordon J, Aliberti S, Ramirez JA. Using cluster analysis of cytokines to identify patterns of inflammation in hospitalized patients with community-acquired pneumonia: a pilot study. Univ Louisville J Respir Infect. 2017;1(1):3-11. doi: 10.18297/jri/vol1/iss1/1/. Epub 2017 Jan 30. PubMed PMID: 28393141; PubMed Central PMCID: PMC5382869.
  • Moffett BK, Panchabhai TS, Nakamatsu R, Arnold FW, Peyrani P, Wiemken T, Guardiola J, Ramirez JA. Comparing posteroanterior with lateral and anteroposterior chest radiography in the initial detection of parapneumonic effusions. Am J Emerg Med. 2016 Dec;34(12):2402-2407. doi: 10.1016/j.ajem.2016.09.021. Epub 2016 Sep 14. PubMed PMID: 27793503.
  • Arnold FW, Summersgill JT, Ramirez JA. Role of Atypical Pathogens in the Etiology of Community-Acquired Pneumonia. Semin Respir Crit Care Med. 2016 Dec;37(6):819-828. Epub 2016 Dec 13. Review. PubMed PMID: 27960206.