View source for Viridans-Group Streptococci

==Background==
*A [[Gram Positive Bacteria]] in the [[Streptococcus Genus]]
*In general, low virulence pathogens and likely [[Blood Culture Contaminant]] unless risk factor (21-50% of positive blood cultures are clinically significant)<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>

==Types==
*Streptococcus milleri
*Streptococcus sanguis
*Streptococcus mitis
*Streptococcus bovis

==Risk Factors for Viridans Bacteremia<ref>Antibiotic Therapy for Positive Blood Cultures. Perez-Jorge EV, et al. Antimicrobe. http://www.antimicrobe.org/new/e38rev2.asp</ref>==
*neutropenia
*oral mucositis
*irradiation to the oral cavity
*antibiotic prophylaxis with trimethoprim-sulfamethoxazole or fluoroquinolones
*intravenous hyperalimentation
*high dose chemotherapy

==[[Antibiotic Sensitivities]]<ref>Sanford Guide to Antimicrobial Therapy 2014</ref>==
{| class="wikitable"
| align="center" style="background:#f0f0f0;"|'''Category'''
| align="center" style="background:#f0f0f0;"|'''Antibiotic'''
| align="center" style="background:#f0f0f0;"|'''[[Viridans strep]]'''
|-
| [[Penicillins]]||[[Penicillin G]]||I
|-
| ||[[Penicillin V]]||I
|-
| ||[[Methicillin]]||I
|-
| ||[[Nafcillin]]/[[Oxacillin]]||I
|-
| ||[[Cloxacillin]]/[[Diclox.]]||I
|-
| Amino-[[Penicillins]]||[[AMP]]/[[Amox]]||I
|-
| ||[[Amox-Clav]]||I
|-
| ||[[AMP-Sulb]]||I
|-
| Anti-Pseudomonal [[Penicillins]]||[[Ticarcillin]]||I
|-
| ||[[Ticar-Clav]]||I
|-
| ||[[Pip-Tazo]]||I
|-
| ||Piperacillin||I
|-
| [[Carbapenems]]||Doripenem||S
|-
| ||[[Ertapenem]]||S
|-
| ||[[Imipenem]]||S
|-
| ||[[Meropenem]]||S
|-
| ||[[Aztreonam]]||R
|-
| [[Fluroquinolones]]||[[Ciprofloxacin]]||R
|-
| ||[[Ofloxacin]]||R
|-
| ||Pefloxacin||X1
|-
| ||[[Levofloxacin]]||S
|-
| ||[[Moxifloxacin]]||S
|-
| ||Gemifloxacin||S
|-
| ||Gatifloxacin||S
|-
| 1st G [[Cephalo]]||Cefazolin||S
|-
| 2nd G. [[Cephalo]]||[[Cefotetan]]||S
|-
| ||[[Cefoxitin]]||S
|-
| ||[[Cefuroxime]]||S
|-
| 3rd/4th G. [[Cephalo]]||[[Cefotaxime]]||S
|-
| ||Cefizoxime||S
|-
| ||[[CefTRIAXone]]||S
|-
| ||Ceftaroline||S
|-
| ||[[CefTAZidime]]||I
|-
| ||[[Cefepime]]||S
|-
| Oral 1st G. [[Cephalo]]||Cefadroxil||S
|-
| ||[[Cephalexin]]||S
|-
| Oral 2nd G. [[Cephalo]]||Cefaclor/Loracarbef||S
|-
| ||Cefproxil||R
|-
| ||Cefuroxime axetil||S
|-
| Oral 3rd G. [[Cephalo]]||Cefixime||S
|-
| ||Ceftibuten||R
|-
| ||Cefpodox/Cefdinir/Cefditoren||S
|-
| [[Aminoglycosides]]||[[Gentamicin]]||X1
|-
| ||Tobramycin||X1
|-
| ||[[Amikacin]]||X1
|-
| ||[[Chloramphenicol]]||X1
|-
| ||[[Clindamycin]]||X1
|-
| [[Macrolides]]||Erythromycin||X1
|-
| ||[[Azithromycin]]||X1
|-
| ||Clarithromycin||X1
|-
| Ketolide||Telithromycin||X1
|-
| Tetracyclines||[[Doxycycline]]||X1
|-
| ||Minocycline||X1
|-
| Glycylcycline||Tigecycline||X1
|-
| ||Daptomycin||X1
|-
| Glyco/Lipoclycopeptides||[[Vancomycin]]||X1
|-
| ||Teicoplanin||X1
|-
| ||Telavancin||X1
|-
| ||Fusidic Acid||X1
|-
| ||Trimethoprim||X1
|-
| ||[[TMP-SMX]]||X1
|-
| Urinary Agents||[[Nitrofurantoin]]||X1
|-
| ||Fosfomycin||X1
|-
| Other||[[Rifampin]]||X1
|-
| ||[[Metronidazole]]||X1
|-
| ||Quinupristin dalfoppristin||X1
|-
| ||[[Linezolid]]||X1
|-
| ||Colistimethate||X1
|}
===Key===
{{Template:Antibacterial Spectra Key}}

==Table Overview==
{{Clinically Relevant Bacteria}}

==See Also==
*[[Microbiology (Main)]]

==References==
<references/>

[[Category:ID]]