This post was most recently updated on April 8th, 2016a. General considerations Most Haemophilus species are normal inhabitants of upper respiratory tract of humans and other animals. The species of Haemophilus that most frequently cause […]
This post was most recently updated on April 6th, 2019Streptococcus pneumoniae (pneumococci) is a part of the normal nasopharyngeal and oropharyngeal flora. It is an important etiological agent of upper and lower respiratory tract infections (URTI […]
This post was most recently updated on June 9th, 2016Niacin test: All species of mycobacterium produces Niacin (nicotinic acid) and the Mycobacterium tuberculosis accumulates the most. A positive niacin test provides preliminary evidence that an […]
This post was most recently updated on February 1st, 2015We have already discussed the common properties and classification of Nontuberculous Mycobacteria (NTM) in previous blog post. In this post you can find information regarding pathogenic […]
This post was most recently updated on March 26th, 2019Novobiocin test is used to differentiate coagulase-negative staphylococci (CONS) and presumptively identify the isolate as Staphylococcus saprophyticus (novobiocin resistant). It is usually performed on urine isolates […]
This post was most recently updated on February 16th, 2017Each of the letters in “IMViC” stands for one of these tests. “I” is for indole; “M” is for methyl red; “V” is for Voges-Proskauer, and […]
This post was most recently updated on July 13th, 2016MUG is an acronym for 4-methylumbelliferyl-beta-D-glucuronide. Escherichia coli produces the enzyme beta-D-glucuronidase. Beta-D-glucuronidase is a enzyme which hydrolyzes the beta-D-glucopyranosid-uronic derivatives to aglycons and D-glucuronic acid. The substrate […]
This post was most recently updated on June 9th, 2016Mueller-Hinton agar (MHA) is the best medium to use for routine susceptibility testing using Kirby-Bauer disc diffusion method for nonfastidious bacteria (both aerobe and facultative anaerobe). Use of media other […]
This post was most recently updated on October 27th, 2018Pathogens of all four major groups of microbes- bacteria, fungi, viruses and parasites may be found circulating in blood during the course of many diseases. Presence […]
This post was most recently updated on May 13th, 2017Always remember: Antibiotic Susceptibility testing should be performed on clinically significant isolates, not on all microorganisms recovered in culture. World Health Organization (WHO) recommends routine use of […]
This post was most recently updated on April 30th, 2019Whenever you see the name of this test i.e. Triple Sugar Iron Agar, you have to remember that it’s a test which has three sugar (Lactose, Sucrose, […]
This post was most recently updated on June 10th, 2016Haemophilus influenzae can cause many kinds of infections. Which can range from mild ear infections to severe diseases, like meningitis. Haemophilus influenzae bacteria most often cause […]
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