PPT-Pasteurella SPECIES -gram negative,

Nonmotile facultative anaerobic coccobacilli or rods Causes chicken cholera and hemorrhagic septicaemia in different animals and birds Most species are oxidase positive catalase. Part-2. Sulfur Dioxide(SO2) and Sulfites(SO3). Sulfur dioxide, Sodium sulfite(Na2SO3), Sodium bisulfide(NaHSO3), and Sodium . metabisulfite. (Na2S2O5) are used to control microorganisms and insects in soft fruits, lemon juices, beverages, sausages, pickles, and fresh shrimp.. Gram Stain Reaction. The Gram stain reaction, named after the Danish bacteriologist Hans Christian Gram, was originally devised in 1882.. Gram staining is based on the ability of the bacterial cell wall to retain the crystal violet dye. . . William H. Benjamin PhD. Clinical Pathology. E. Coli. O157:H7 spinach. 204 cases, 8/2006 – 10/2006 103 hospitalizations, 31 HUS, 3 deaths. 26 states. Since 1995, there have been 19 outbreaks of foodborne . Internal Structures:. cytoplasm. nucleoid. ribosomes. Boundaries:. cell membrane. cell wall. capsule. Appendages:. flagellum. pili. Shapes of Bacteria. Bacteria Identification Criteria. Shapes. Bacteriology: . study . of . bacteria. Mycology: . study . of . fungi. Protozoology: . study . of . protozoa. Phycology (or algology): . study . of . algae. Parasitology: . study . of . parasites. Immunology: . Differentiate bacteria into two large groups (the Gram Positive and the Gram negative).. Gram status is important in medicine; the presence or absence of a cell wall will change the bacterium's susceptibility to some antibiotics. and . Function. Bacterial . Form . and Function. A. . Structures common to . all. bacterial cells. 1. . Cell membrane. 2. . Cytoplasm. 3. . Ribosomes. 4. . One (or a few) . chromosomes. Bacterial Form . Presenter: Dr. Mohammad Qadi. Introduction. Several studies evaluated resistance among . clinical. isolates in West Bank-Palestine .  . showed increasing and . alarming. rates of antimicrobial resistance . Patient History. A 2-year old female presents to the Emergency Department with seizures with the onset of fever. The patient was diagnosed with . Enterobacter cloacae . bacteremia and treated with meropenem. 1 The slide is washed in water; excess water is removed using a blotting paper, dried in air and heat fixed before observing under microscope. Those bacteria that hold on to primary dye-iodine comple YERSINIA. Disease. Yersinia . pestis. . is the cause of . plague. , also known as the . black death. , the scourge of the Middle Ages. . It is also a contemporary disease, occurring in the western United States and in many other countries around the world. . Enterobacteriaceae. family . By:. Asst. Prof. Dr. Shaima’a Al-. Salihy. Learning objectives:. After this . lec. . You must be able to:. Describe microscopic morphology and cultural biochemical characteristics of each member in this family.. Lab. . 3. By. Assistant lecturer. Zainab farooq . shafeeq. Principle. The Gram stain is the most useful and widely employed differential stain in bacteriology.. It divides bacteria in to two groups (Gram positive and Gram negative bacteria..