PPT-Orthomyxoviruses Dr.R.S.Gopika

Prof amp HoD Dept Pathology SKHMC Influenza virus General Properties Influenza virus is spherical and possesses helical symmetry Viral RNA comprises of single stranded RNA Site of RNA replication . DEPT OF PATHOLOGY AND MICROBIOLOGY . SKHMC. CLOSTRIDIUM. CLOSTRIDIUM. Anaerobic. Sporing. Diameter of the spore is larger than the cell. Kloster. - spindle. GENERAL . Some are . commensals. of the animal & human gut which invade the blood and tissue when host die and initiate the decomposition of the dead body.. Professor. DEPT OF PATHOLOGY. SKHMC. Inflammation is a complex reaction to injurious agents such as microbes & damaged usually necrotic cells , that consists of vascular responses ,migration, & activation of leucocytes & systemic reactions. . HoD. Dept. Of Pathology. Embolism: . . . Embolism . is the occlusion or obstruction of a vessel by an abnormal mass transported from a different site by the circulation. An embolus . is a detached intravascular solid, liquid, or gaseous mass that is carried by the blood to a site distant from its point of origin. . M.D. (. Hom. ). Prof.. & . HoD. Department of Pathology. Definition. Edema is . an abnormal accumulation of fluid in the cavities and intercellular spaces of the body.. Oedema. . . Primary factors favoring edema are increased capillary hydrostatic pressure (increased venous pressure), decreased osmotic pressure of plasma (. Prof & HoD . Dept of Pathology. SKHMC. . Pasteurellae. . Yersinia. Pasteurella. Francisella. Primary pathogens of rodents. Human pathogens: . Yersinia. . pestis. . Yersinia. M.D. (. Hom. ). Prof.. & . HoD. Department of . Pathology. SKHMC. Definition. . Causes & types. . HYPOVOLAEMIC SHOCK. . results from loss of blood or plasma volume . -. trauma. (a) severe . . M.D. (. Hom. .). Professor & . HoD. Dept. of Pathology. SKHMC . streptococcus. Gram-positive, . nonmotile, . catalase-negative,. facultatively. anaerobic . cocci. that occur in chains or pairs. . PROFESSOR, DEPT OF PATHOLOGY. SKHMC. The British oncologist . Sir Rupert Willis definition : . "A neoplasm is an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of the normal tissues and persists in the same excessive manner after cessation of the stimuli which evoked the change." . M.D. (. Hom. ). Prof.. & . HoD. Department of Pathology. Thrombosis. Thrombosis . is the formation of a blood clot within the vascular system during life.. . The blood clot is adherent to the vessel wall. ). Type A. Type B. Type C. ~150 subtypes. Strains. Subtypes are serologically distinct. Antibodies do not cross-neutralize between subtypes.. Strains are serologically identical. Antibodies do cross-neutralize between strains.. DEPT OF PATHOLOGY AND MICROBIOLOGY . SKHMC. Clinically important Gram positive bacilli. Bacillus. Clostridium. Corynebacterium. Spore forming. Bacillus. Clostridium. Non spore forming. . Corynebacterium.