Morphologic assessment of cord factor for rapid and presumptive identification of Mycobacterium tuberculosis complex
نویسندگان
چکیده
منابع مشابه
[Detection of cord factor for the presumptive identification of Mycobacterium tuberculosis complex].
OBJECTIVE Virulent strains of the Mycobacterium tuberculosis complex, under certain appropriate conditions, grow as characteristic ropes, bundles or serpentine cords known as cord factor or growth in cords. The objective of the present study was to evaluate cord factor detection as a method of achieving presumptive identification of the M. tuberculosis complex, comparing it to conventional typi...
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Mycobacterium tuberculosis often exhibits serpentine cording when grown in liquid medium, whereas Mycobacterium kansasii can be larger and cross-barred. We assessed the use of these morphologic characteristics as a cost-effective method for rapid presumptive identification of isolates from BACTEC bottles. Without specific training, using the Kinyoun acid-fast stain, definitive cording was found...
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Serpentine cord formation in BACTEC 12B medium was evaluated as a rapid method for the presumptive identification of M. tuberculosis complex. Kinyoun acid-fast stained smears were prepared from 666 positive BACTEC 12B bottles and examined for the presence or absence of serpentine cording. Cord formation had a sensitivity, specificity, positive predictive value, and negative predictive value of ...
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این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...
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ژورنال
عنوان ژورنال: International Journal of Infectious Diseases
سال: 2014
ISSN: 1201-9712
DOI: 10.1016/j.ijid.2014.03.1180