Tags

Type your tag names separated by a space and hit enter

Susceptibilities of Haemophilus influenzae, Streptococcus pneumoniae, including serotype 19A, and Moraxella catarrhalis paediatric isolates from 2005 to 2007 to commonly used antibiotics.
J Antimicrob Chemother 2009; 63(3):511-9JA

Abstract

OBJECTIVES

The aim of this study was to evaluate susceptibility to common paediatric antibiotics for Streptococcus pneumoniae, non-typeable Haemophilus influenzae and Moraxella catarrhalis isolated from 2005 through 2007.

METHODS

Microdilution MIC assays were performed using CLSI-approved methods. S. pneumoniae 19A strains were identified by quellung reaction.

RESULTS

Among 143 non-typeable H. influenzae, 42% produced beta-lactamase. By 2007 breakpoints (PK/PD:CLSI), percentage susceptibility for non-typeable H. influenzae was: ceftriaxone = cefixime = high-dose amoxicillin/clavulanate (all 100%:100%) > standard-dose amoxicillin/clavulanate (91.6%:100%) > cefuroxime axetil (88.1%:99.3%) > cefdinir (83.9%:100%) > trimethoprim/sulfamethoxazole (73.4%:73.4%) >high-dose amoxicillin (58%:58%) > standard-dose amoxicillin (55.2%:58%) > cefprozil (28.7%:83.2%) > cefaclor (3.5%:83.2%) > azithromycin (0%:87.4%). Of 208 S. pneumoniae (42 serotype 19A), 86 were penicillin-susceptible, 60 were penicillin-intermediate and 62 were penicillin-resistant by 2007 CLSI breakpoints. Percentage susceptibility for all S. pneumoniae/19A by PD breakpoints was: ceftriaxone (95.2%/86.1%) > high-dose amoxicillin (89.4%/58.3%) > clindamycin (85%/58.3%) > standard-dose amoxicillin (73.5%/33.3%) > cefuroxime axetil (69.2%/36.1%), cefprozil (67.3%/33.3%) > cefdinir (59.1%/33.3%) > cefixime (57.7%/33.3%) > azithromycin (56.7%/33.3%) > trimethoprim/sulfamethoxazole (50.5%/25%) > penicillin (41.3%/19.4%) > cefaclor (28.8%/8.3%). Percentage M. catarrhalis (n = 62) susceptibility by PK/PD breakpoints was: high-dose amoxicillin/clavulanate = cefixime (100%) > azithromycin (98.4%) > ceftriaxone (96.8%) > standard-dose amoxicillin/clavulanate (88.7%) > cefdinir (80.6%) > cefprozil = cefuroxime axetil (37.1%) > high-dose amoxicillin (11.2%) > cefaclor (6.5%) > standard-dose amoxicillin (4.8%).

CONCLUSIONS

Despite high rates of beta-lactamase production among non-typeable H. influenzae and M. catarrhalis, multiple oral treatment options exist for non-typeable H. influenzae and M. catarrhalis. Multidrug-resistant serotype 19A S. pneumoniae (approximately 20%) limits treatment options for ambulatory S. pneumoniae respiratory disease.

Authors+Show Affiliations

Pediatric Infectious Diseases Section, Children's Mercy Hospital and Clinics, and the University of Missouri-Kansas City, Kansas City, MO, USA. cjharrison@cmh.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19174454

Citation

Harrison, Christopher J., et al. "Susceptibilities of Haemophilus Influenzae, Streptococcus Pneumoniae, Including Serotype 19A, and Moraxella Catarrhalis Paediatric Isolates From 2005 to 2007 to Commonly Used Antibiotics." The Journal of Antimicrobial Chemotherapy, vol. 63, no. 3, 2009, pp. 511-9.
Harrison CJ, Woods C, Stout G, et al. Susceptibilities of Haemophilus influenzae, Streptococcus pneumoniae, including serotype 19A, and Moraxella catarrhalis paediatric isolates from 2005 to 2007 to commonly used antibiotics. J Antimicrob Chemother. 2009;63(3):511-9.
Harrison, C. J., Woods, C., Stout, G., Martin, B., & Selvarangan, R. (2009). Susceptibilities of Haemophilus influenzae, Streptococcus pneumoniae, including serotype 19A, and Moraxella catarrhalis paediatric isolates from 2005 to 2007 to commonly used antibiotics. The Journal of Antimicrobial Chemotherapy, 63(3), pp. 511-9. doi:10.1093/jac/dkn538.
Harrison CJ, et al. Susceptibilities of Haemophilus Influenzae, Streptococcus Pneumoniae, Including Serotype 19A, and Moraxella Catarrhalis Paediatric Isolates From 2005 to 2007 to Commonly Used Antibiotics. J Antimicrob Chemother. 2009;63(3):511-9. PubMed PMID: 19174454.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Susceptibilities of Haemophilus influenzae, Streptococcus pneumoniae, including serotype 19A, and Moraxella catarrhalis paediatric isolates from 2005 to 2007 to commonly used antibiotics. AU - Harrison,Christopher J, AU - Woods,Charles, AU - Stout,Gordon, AU - Martin,Brittanie, AU - Selvarangan,Rangaraj, Y1 - 2009/01/27/ PY - 2009/1/29/entrez PY - 2009/1/29/pubmed PY - 2009/3/21/medline SP - 511 EP - 9 JF - The Journal of antimicrobial chemotherapy JO - J. Antimicrob. Chemother. VL - 63 IS - 3 N2 - OBJECTIVES: The aim of this study was to evaluate susceptibility to common paediatric antibiotics for Streptococcus pneumoniae, non-typeable Haemophilus influenzae and Moraxella catarrhalis isolated from 2005 through 2007. METHODS: Microdilution MIC assays were performed using CLSI-approved methods. S. pneumoniae 19A strains were identified by quellung reaction. RESULTS: Among 143 non-typeable H. influenzae, 42% produced beta-lactamase. By 2007 breakpoints (PK/PD:CLSI), percentage susceptibility for non-typeable H. influenzae was: ceftriaxone = cefixime = high-dose amoxicillin/clavulanate (all 100%:100%) > standard-dose amoxicillin/clavulanate (91.6%:100%) > cefuroxime axetil (88.1%:99.3%) > cefdinir (83.9%:100%) > trimethoprim/sulfamethoxazole (73.4%:73.4%) >high-dose amoxicillin (58%:58%) > standard-dose amoxicillin (55.2%:58%) > cefprozil (28.7%:83.2%) > cefaclor (3.5%:83.2%) > azithromycin (0%:87.4%). Of 208 S. pneumoniae (42 serotype 19A), 86 were penicillin-susceptible, 60 were penicillin-intermediate and 62 were penicillin-resistant by 2007 CLSI breakpoints. Percentage susceptibility for all S. pneumoniae/19A by PD breakpoints was: ceftriaxone (95.2%/86.1%) > high-dose amoxicillin (89.4%/58.3%) > clindamycin (85%/58.3%) > standard-dose amoxicillin (73.5%/33.3%) > cefuroxime axetil (69.2%/36.1%), cefprozil (67.3%/33.3%) > cefdinir (59.1%/33.3%) > cefixime (57.7%/33.3%) > azithromycin (56.7%/33.3%) > trimethoprim/sulfamethoxazole (50.5%/25%) > penicillin (41.3%/19.4%) > cefaclor (28.8%/8.3%). Percentage M. catarrhalis (n = 62) susceptibility by PK/PD breakpoints was: high-dose amoxicillin/clavulanate = cefixime (100%) > azithromycin (98.4%) > ceftriaxone (96.8%) > standard-dose amoxicillin/clavulanate (88.7%) > cefdinir (80.6%) > cefprozil = cefuroxime axetil (37.1%) > high-dose amoxicillin (11.2%) > cefaclor (6.5%) > standard-dose amoxicillin (4.8%). CONCLUSIONS: Despite high rates of beta-lactamase production among non-typeable H. influenzae and M. catarrhalis, multiple oral treatment options exist for non-typeable H. influenzae and M. catarrhalis. Multidrug-resistant serotype 19A S. pneumoniae (approximately 20%) limits treatment options for ambulatory S. pneumoniae respiratory disease. SN - 1460-2091 UR - https://www.unboundmedicine.com/medline/citation/19174454/Susceptibilities_of_Haemophilus_influenzae_Streptococcus_pneumoniae_including_serotype_19A_and_Moraxella_catarrhalis_paediatric_isolates_from_2005_to_2007_to_commonly_used_antibiotics_ L2 - https://academic.oup.com/jac/article-lookup/doi/10.1093/jac/dkn538 DB - PRIME DP - Unbound Medicine ER -