The document discusses three genera of gram-positive, filamentous bacteria: Actinomyces, Nocardia, and Streptomyces. Actinomyces can cause actinomycosis, a chronic infection of the cervico-facial, thoracic or abdominal areas. Nocardia commonly causes subcutaneous infections, pulmonary infections, and brain abscesses. Streptomyces is associated with mycetoma and can invade bone. Penicillin is often used to treat Actinomyces, while sulfonamides are frequently used for Nocardia and Streptomyces along with surgical debridement in some cases.
• Actinomyces species are classified as anaerobic, gram positive and filamentous bacteria.
• It is a chronic granulomatous suppurative and fibrosing disease caused by anaerobic or microaerophilic gram-positive nonacid fast, branched filamentous bacteria.
• Most of the species isolated from actinomycotic lesions have been identified as A. israelii, A. viscosus, A. odontolyticus, A.naeslundii or A. meyeri.
• These microorganisms have been identified in dental plaque, dental calculus, necrotic pulp, and tonsils.
• The usual pattern of this disease is one characterized chiefly by the formation of abscesses that tend to drain by the formation of sinus tracts.
• pus from the abscesses is examined on a clean glass slide, it shows the typical ‘sulfur granules’ or colonies of organisms, which appear in the suppurative material as tiny, yellow grains.
• Another infection that produces this type of sulfur granules is botryomycosis.
• Actinomyces species are classified as anaerobic, gram positive and filamentous bacteria.
• It is a chronic granulomatous suppurative and fibrosing disease caused by anaerobic or microaerophilic gram-positive nonacid fast, branched filamentous bacteria.
• Most of the species isolated from actinomycotic lesions have been identified as A. israelii, A. viscosus, A. odontolyticus, A.naeslundii or A. meyeri.
• These microorganisms have been identified in dental plaque, dental calculus, necrotic pulp, and tonsils.
• The usual pattern of this disease is one characterized chiefly by the formation of abscesses that tend to drain by the formation of sinus tracts.
• pus from the abscesses is examined on a clean glass slide, it shows the typical ‘sulfur granules’ or colonies of organisms, which appear in the suppurative material as tiny, yellow grains.
• Another infection that produces this type of sulfur granules is botryomycosis.
Pseudomonas is a type of bacteria that can cause infections. Pseudomonas is a common genus of bacteria, which can create infections in the body under certain circumstances. There are many different types of Pseudomonas bacteria
Gram positive aerobic spore forming organisms, primarily a zoonotic disease responsible to cause deadliest infections in humans due to inhalation, ingestion of spores of these organisms present in dust, animal wool, or in dead animals. Causes Cutaneous, Pulmonary and Intestinal Anthrax.
Grow well on ordinary media. Detected by M'Fadyean's Reaction.
Pseudomonas is a type of bacteria that can cause infections. Pseudomonas is a common genus of bacteria, which can create infections in the body under certain circumstances. There are many different types of Pseudomonas bacteria
Gram positive aerobic spore forming organisms, primarily a zoonotic disease responsible to cause deadliest infections in humans due to inhalation, ingestion of spores of these organisms present in dust, animal wool, or in dead animals. Causes Cutaneous, Pulmonary and Intestinal Anthrax.
Grow well on ordinary media. Detected by M'Fadyean's Reaction.
Acinetobacter: Awakening of a sleeping demonShyam Mishra
Acinetobacter is an emerging pathogen associated with several infections, in particular hospital-acquired infections. It is notorious for its multidrug resistance property. It is a great nuisance for the clinicians, microbiologists and a subject of great research for the scientists.
LUMEN DWELLING FLAGELLATES - GIARDIA
REFS:
INTERNATIONALLY ACCEPTED BOOK OF MEDICAL PARASITOLOGY BY K. D. CHATTERJEE
TEXT BOOK OF MEDICAL PARASITOLOGY BY PANIKER
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