PPT-Rickettsia

DR SUDHA KUMARI Assistant Proffecer Department of Veterinary Microbiology Bihar Veterinary College Unit II VMC602 06112020 Rickettsia The term rickettsia has nothing to do with rickets which is a deficiency disease resulting from lack of vitamin D the bacterial genus Rickettsia was named after Howard Taylor Ricketts in honor of his pioneering work on tickborne spotted fever. Daghistani. Rickettsia. Family. small (0.3 × 1 to 2 μm) . stained poorly with the Gram stain . grew only in the cytoplasm . of. e. ukaryotic . cells . Includes the genera:. Rickettsia. , . Orientia. The Fungi. The . Fungi. A. Once thought to be plants but the cell wall is made of chitin rather than cellulose and these are not photosynthetic. B. Instead they are saprobic organisms that frequently live off of dead organic matter. You are paged by the Microbiology Lab and told that blood . cultures drawn from your patient, Mrs. I. M. Septic, are growing . gram-positive . cocci. . Mrs. Septic is a 42-year-old woman who was. admitted with a fever and malaise. Which of the following is NOT . . The . rickettsia. are bacteria which are . obligate intracellular parasites.. They are considered a separate group of bacteria because they have the common feature of being spread by arthropod vectors (lice, fleas, mites and ticks). The cells are extremely small (0.25 u in diameter) rod-shaped, coccoid and often pleomorphic microorganisms which have typical bacterial cell walls, no flagella, are gram-negative and multiply via binary fission only inside host cells. They occur singly, in pairs, or in strands. . cultures drawn from your patient, Mrs. I. M. Septic, are growing . gram-positive . cocci. . Mrs. Septic is a 42-year-old woman who was. admitted with a fever and malaise. Which of the following is NOT . Assistant Professor & Head. Department of Veterinary Pathology. Bihar Veterinary College. Bihar Animal Sciences University, Patn. a. Rickettsia. A.  . genus.  of . nonmotile. , . Gram-negative, . DISEASE: ROCKY MOUNTAIN SPOTTED FEVER. A . RED. RASH. Robert is a 41-year-old man who came down with a high fever, headache, abdominal pain and muscle aches. He decides to tough it out at home but after 2 days, he also develops a red rash on his arms and legs. His wife drives him to the hospital where he is assessed by the emergency physician. The doctor asks about any insect bites and Robert tells him about getting tick bites during a camping trip one week prior to developing the first symptoms. Upon examining Robert he notes the macular rash on the arms and legs. Initial bloodwork shows that Robert has a low platelet count, low sodium levels and abnormal liver function tests.. . CHLAMYDIA. Abed . ElKader. . Elottol. . MSc. . Microbiology. 2010. 1. Abed . ElKader. . ElOttol. General Characteristics. • Obligate intracellular . bacteria.. • Have . ribosomes. like . bacteria.. formerly the Center for Biosecurity of UPMC (Epidemic Typhus) Image of lice. Source: CDC Public Image Library (ID #9219). Fact Sheet: Rickettsia prowazekii (Epidemic Typhus) As no rapid test is availa water. and heated of the heated Oligonucleotide primers. typhus- and spotted fever group group )fragment.". j5 The second. Rr 190.70~ (5'-ATG-GCG-AAT-A=- TCT-CC.JI-AAA-3') and Rr 190.6031 tS'-AGT- GCA Bartonellosis, Q Fever Decha Pangjai D.V.M. National Institute of Health, Department of Medical Sciences, Thailand What is a Rickettsial Disease? Genus Bartonella Bartonella spp are small, gram - Rolain J, Mathai E, Lepidi H, Somashekar HR, Mathew LG, Prakash J, et al. "Candidatus Rickettsia kellyi," India. Emerg Infect Dis. 2006;12(3):483-485. https://doi.org/10.3201/eid1203.050853. DCH, MD.. How serious the situation is !. CLASSIFICATION OF RICKETTSIAL DISEASE. DISEASES. RICKETTSIAL AGENTS. INSECT VECTORS. MAMMALIAN VECTORS. Typhus group. Epidemic typhus. Murine. typhus. Scrub typhus. Azad AF, Beard CB. Rickettsial Pathogens and Their Arthropod Vectors. Emerg Infect Dis. 1998;4(2):179-186. https://doi.org/10.3201/eid0402.980205.