ROBERT IGBEDE

1. BY
ROBERT IGBEDE

2.  Gram negative
 Rod-shaped
 Coccobacillus
 anaerobic

4.  It was discovered in 1894
 It was formerly known Pasteurella disease
 Y. pestis was discovered by a Swiss/French
bacteriologist known as Alexander Yersin
 It was renamed Yersinia Pestis in 1967
 Plague of Justinian-Byzantine empire, role in
black death-European population

5.  It causes plague
 1) bubonic: which affects the lymphatic nodes,
causing buboes(swollen blackened lymph
node)
 2) pneumonic: which causes hemorrhage in the
pulmonary capillaries and damages the
respiratory system
 It also causes septicemia by multiplying in the
blood stream and also leading damages in
endothelial lining, thrombosis etc

6.  By rat fleas
 Household pets
 Directly by rat bite
 Human carriers: usually through respiratory
droplets

8.  Lymph node swellings usually occurs at the:
 Axillary lymph node
 Inguinal lymph node
 Maxillary lymph node

9.  Bubonic: buboes form at lymph nodes
 Pneumonic: coughing, bloody sputum,
shortness of breath and chest pain (angina
pectoris)
 Septicemia: abdominal pain, blood clotting
problems, gangrene

10.  Blood test to detect certain antibodies
 Check lungs for sign of infection (auscultation)
 Check lymphatic system for swelling
 Culture sample of bodily fluids

11.  Taking antibiotics in the first 24hrs
 i) Streptomycin
 ii) Gentamycin
 iii) Chloramphenicol