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Pasteurella multocida is a Gram-negative, nonmotile, penicillin-sensitive coccobacillus of the family Pasteurellaceae. [1] Strains of the species are currently classified into five serogroups (A, B, D, E, F) based on capsular composition and 16 somatic serovars (1–16).
From the Greek derma (skin) + philos (loving), Dermatophilus congolensis is a Gram-positive, aerobic actinomycete, and facultatively anaerobic bacteria. D. congolensis infects the epidermis and produces exudative dermatitis termed dermatophilosis that was previously known as rain rot, rain scald, streptotrichosis, and mycotic dermatitis.
It shows up like a rash of painful blisters, will eventually produce pus that is yellowish in color. Cellulitis – Cellulitis is also rash-like; the skin that is infected will be red, swollen, and usually warm to the touch. Cellulitis commonly infects the lower legs, but can also, less commonly, affect the face and arms.
Staphylococcus capitis TE8 was isolated from the skin surface of a healthy adult foot and found to have potent antibacterial action against Gram-positive bacteria such as Staphylococcus aureus. [5] Staphylococcus is a gram-positive bacterial spherule. Some staphylococci are capable of producing free coagulase.
Acinetobacter baumannii is a typically short, almost round, rod-shaped (coccobacillus) Gram-negative bacterium.It is named after the bacteriologist Paul Baumann. [2] It can be an opportunistic pathogen in humans, affecting people with compromised immune systems, and is becoming increasingly important as a hospital-derived infection.
The rashes are red, flat, and the itchy rash is present over the forearm of the infected individual. The classic Rocky Mountain Spotted Fever rash occurs in about 90% of patients and develops 2 to 5 days after the onset of fever. The rash can differ greatly in appearance along the progress of the R. rickettsii infection. [11]
The bacteria causing this disease, Brucella, are small, Gram-negative, nonmotile, nonspore-forming, rod-shaped (coccobacilli) bacteria. They function as facultative intracellular parasites , causing chronic disease , which usually persists for life.
A Gram stain is performed to show Gram-positive cocci in chains. Then, the organism is cultured on blood agar. The rapid pyrrolidonyl arylamidase (PYR) test is commonly used, wherein a positive reaction confers a presumptive identification of group A beta-hemolytic streptococci if the appearance and clinical context is consistent.