Leprosy- Mycobacterium leprae (Hansen bacillus) infection causes leprosy. It is an acid-fast bacilli that has a tendency to attach to nerves and affect the larynx, mainly the epiglottis. Nasal mucosa is thought to be the most likely point of entry, which explains why nasal perforation is obser...
An individual cohort study was carried out via a prospective local TB database capturing 90 cases of cervical LN TB over 34months. We compared the diagnostic efficacy of fine needle aspiration (FNA) and excision biopsy of LN. FNA cytology revealed granulomata in 49%, acid-fast bacilli (AFB)...
Teichoic acids are made of polyribitol phosphate or polyglycerol phosphate. They are major surface antigens of gram-positive bacteria. They are of two types; wall teichoic acid and lipoteichoic acid. Teichuronic acid is a polymer of N-acetylmannuronic acid or D-glucuronic acid. This type of c...
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We recruited sputum acid fast bacilli (AFB) smear-positive patients from the tuberculosis clinic and wards at Mulago Hospital in Kampala, Uganda. Patients were asked to cough as strongly and frequently as they comfortably could for two 5-min sessions of coughing. Results In a cohort of 96 ...
How do you differentiate a bacteria culture that was acid-fast stained versus gram stained?Urinary tract infections are most commonly caused by: a) Gram-negative bacilli b) Gram-positive cocci c) Gram-positive bacilli d) Gram-negative cocci e) None of the ...
Suppose you did a gram stain on a sample of bacteria, and you saw bacilli that were gram positive next to bacilli that looked gram negative. What are two ways you could interpret these results? Explain. Compare and contrast acid-fast versus gram-negative bacteria. Which of the following stat...
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Lysine is an essential amino acid necessary for chicken health. It’s likely to be deficient in hens that are kept in confinement. Hens that are pastured normally obtain the necessary lysine from other sources, such as meat and fish, insects, and worms. ...
They are of different types, such as negative stains, gram staining dyes, acid stains, and more. The stains and dyes have varied chemical properties that stain the cells differently. Answer and Explanation: Morganella morganii is a rod-shape...