Which Bug Is It?

Which of the following organisms is the most likely cause of Helen's chronic pneumonia?
 
Adenovirus Chlamydia pneumoniae Francisella tularensis Legionella pneumophila Respiratory Syncytial Virus
Bacillus anthracis Coccidioides immitis Haemophilus influenzae Moraxella catarrhalis Staphylococcus aureus
Bacteroides melaninogenicus Cryptococcus neoformans Herpes Simplex Virus Mycoplasma pneumoniae Streptococcus agalactiae
Blastomyces dermatitidis Cytomegalovirus Histoplasma capsulatum Mycobacterium tuberculosis Streptococcus pneumoniae
Candida albicans Echinococcus granulosus Influenza Virus Nocardia sp. Streptococcus pyogenes
Chlamydia trachomatis Entamoeba histolytica Klebsiella pneumoniae Pseudomonas aeruginosa Varicella-Zoster
 
 Do you need to go back and look at Helen again?
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©1998, Neal R. Chamberlain, Ph.D.. All rights reserved.