Gentamicin as a selective agent for the isolation of beta haemolytic streptococci.

نویسندگان

  • W A Black
  • F Van Buskirk
چکیده

The isolation of beta haemolytic streptococci was compared using Columbia sheep blood agar with and without gentamicin in a final concentration of 5.5 micrograms per ml. The inclusion of gentamicin gave greatly improved results whenever the isolation of this organism in pure culture was complicated by overgrowth with Gram-negative bacilli or staphylococci.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effects of selective media and atmosphere of incubation on the isolation of group A streptococci.

The effects of selective media and atmosphere of incubation on the isolation of group A beta-hemolytic streptococci were evaluated. Sheep blood agar medium with gentamicin (2.5 or 5.0 mug/ml) was inferior to antibiotic-free sheep blood agar medium. This resulted from the partial restriction of group A streptococcal growth on gentamicin medium. Recovery of beta-hemolytic streptococci from specim...

متن کامل

Comparison of five selective media for beta-haemolytic streptococci.

Five selective media for beta-haemolytic streptococci were tested and compared with the conventional blood agar plate using 200 throat swabs from children with possible streptococcal pharyngitis. The medium described by Liebermeister and Braveny, which is based on the reduction of nutrients and enhancement of the haemolytic activity of beta-streptococci, was markedly superior to the other selec...

متن کامل

Selective broth medium for isolation of group B streptococci.

A selective medium containing Todd-Hewitt broth, sheep blood, nalidixic acid, and gentamicin sulfate was found to enhance significantly the isolation of group B streptococci from vaginal cultures. Preparation of the medium, which is stable for up to 4 weeks at 4 C, is simple and inexpensive. Use of such a medium should facilitate identification of vaginal colonization with group B streptococci.

متن کامل

Rapid discrimination between strains of beta haemolytic streptococci by intact cell mass spectrometry.

BACKGROUND & OBJECTIVES Beta haemolytic streptococci belonging to Lancefield group A, B, C and G cause a wide spectrum of clinical diseases. Hence there is a need for rapid and accurate typing of these strains. The present study was undertaken to evaluate the use of intact cell matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) for rapid discrimination b...

متن کامل

Effect of Staphylococcus Aureus and Streptococcus beta-haemolytic Supernatants’ on Leishmania Major Promastigotes Viability: An In Vitro Study

Background and Aims: Leishmaniasis is an intracellular protozoan- parasitic disease, the common vector of transmission. Both zoonotic and anthroponotic cutaneous leishmaniasis (CL) are endemic in different foci. With regard to the cutaneous form, 1.0-1.5 million cases were reported annually with 90% of the cases. Although antimony-containing compounds that are the main drugs used to treat Leish...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of clinical pathology

دوره 26 2  شماره 

صفحات  -

تاریخ انتشار 1973