PPT-Streptococci &

Corynebacteria Streptococci Cocci spherical Morphology Gram positive cocci in chains Characteristics of Streptococci Morphologygtgt Gram positive cocci Arranged in chains and some spp arranged in pairs. Pharyngitis. Group 4. UPPER RESPIRATORY TRACT INFECTIONS. Rhinitis. Sinusitis. Nasopharyngitis(common cold). Laryngitis. Pharyngitis. Epiglottis. Laryngotracheatis. Tracheatis. Members. Orimoloye. Philip . بسم الله الرحمن الرحيم. Diagnostic Medical Microbiology-Laboratory Manual. Culture. . Throat. A throat swab culture is a laboratory test done to isolate and identify organisms that may cause infection in the throat mainly . A Newborn’s Greatest Threat?. Tracy Bumsted, MD, MPH. Scanning electron micrograph shows a human neutrophil binding to and phagocytosing group B streptococci that have been opsonized with a monoclonal antibody and complement.. STREPTOCOCCUS 15.1INTRODUCTIONStreptococci Streptococci are Gram-positive cocci arranged in chains or pairs. They are part ofStreptococcus pyogenes causing pyogenic After reading this lesson, you will Cocci. . Streptococci. . By . Lec. . Dr. . Thanaa. . Rasheed. . Abdulrahman. 6. th. lect. bacteriology. Streptococci of medical importance are listed in Table 1. Species. Lancefield Group. . Streptococci. Cocci. :. spherical. Morphology:. Gram positive, . cocci. in chains . Characteristics of Streptococci. Morphology>> . Gram positive, . cocci. Arranged in chains, and some spp. arranged in pairs. . objectives. * Study systemic bacteriology. * Describe Genus Streptococcus, its types, pathogenesis, and lab diagnosis. . When grown on sheep blood agar, streptococci display . one. of . three types . Senior Demonstrator, . Microbiology,KEMU. , Lahore. Streptococci. Characters of Streptococci. Gram positive . cocci. 1µm in diameter. Chains or pairs. Usually capsulated. Non motile. CapnophiliC. Non spore forming. PUERPERALINFECTION185Sincethenithasbeenthecommonbeliefthathaemolyticstreptococcigaverisetovirulent,andnon-haemolytictomildinfection.Thoughthisviewisfairlycorrectinthemain,agreatdealofevidencehasbeenco McCormick DW, Molyneux EM. Bacterial Meningitis and Haemophilus influenzae Type b Conjugate Vaccine, Malawi. Emerg Infect Dis. 2011;17(4):688-690. https://doi.org/10.3201/eid1704.101045. . Greek-. streptus. =flexible: . coccus. = sphere spherical or ovoid cells, occurring in short or long chins, pairs, not in groups. Capsules are not regularly . formid. but develop in some species. . . Hazim. . abdul. . Wahhab. General characters of streptococci. :. Spherical . (cocci) arranged in chain . or pairs. .. Gram- positive.. Most . streptococci are facultative anaerobes.. All . Streptococci are catalase negative.. . 6. Gram-positive . cocci. Streptococcus. By:. Asst. Prof. . Dr. . Shaima’a. Al-. Salihy. . Streptococci. Important properties:. Large group of bacteria belonging to the family . Streptococcaceae. By: Nader . Alaridah. MD, PhD. STREPTOCOCCUS. The “other” Gram positive Coccus. Some are members of the normal human microbiota; others are associated with important human diseases attributable to the direct effects of infection by streptococci or in other cases to an immunologic response to them.