Concept explainers
Strep throat and pneumococcal pneumonia are considered as the major streptococcal infections. The streptococcal strains often isolated from the upper respiratory tract of the humans. The major species in the group of A Streptococci are Streptococcus pyogenes, which is often isolated from the upper respiratory tract of the humans. It can cause serious infections, if the defense mechanism of the host is week or extremely virulent strain is encountered. Streptococcus pneumoniae is the second major streptococcal pathogen of the human being. It can cause intrusive lung infections, as secondary infections to the other respiratory syndromes. It causes community-acquired infections like pneumonia, otitis media, and bacteremia.
Want to see the full answer?
Check out a sample textbook solutionChapter 30 Solutions
Brock Biology of Microorganisms (15th Edition)
- Three days before a nurse developed meningococcemia, she assisted with intubation of a patient with a Neisseria meningitides infection. Of the 24 medical personnel involved, only this nurse became ill. The nurse recalled that she was exposed to nasopharyngeal secretions and did not receive antibiotic prophylaxis. What two mistakes did the nurse make? How is meningitis transmitted?arrow_forwardWhen is Pneumocystis pneumonia likely to occur in humans?arrow_forwardWhat clinical characteristics do Chlamydia trachomatis and Neisseria gonorrhoea have in common? Which antibiotic can be used to treat both infections? Thank you!arrow_forward
- What is ancylostomiasis?arrow_forwardWhat are the pathologic effects of Mycoplasma pneumoniae?arrow_forwardBacterial (e.g., S. pneumoniae) pneumonia is commonly manifested by a cough productive of sputum, whereas with atypical (e.g., Mycoplasma pneumoniae) pneumonia, the cough is usually nonproductive or absent. Explain.arrow_forward
- Explain how the body (including cells, organs, organ systems) is affected by the bacterium called Neisseria meningitidis? Are there any long-term effects caused by the bacterium, even after recovery?arrow_forwardWhy is erysipeloid an occupation-associated infection?arrow_forwardWhat is the causative agent of Lyme disease and how is it transmitted to humans? What preventative measures can an individual take to avoid infection?arrow_forward
- Describe how Balantidium coli invades the tissue. How is it different from invasion byEntamoeba histolytica? Describe the pathophysiology of a Entamoeba histolytica infection. Why are Giardia intestinalis and Dientamoeba fragilis difficult to diagnose? Illustrate and describe the typical life cycle of an intestinal amoeba.arrow_forwardAnswer the following: 1.) what is gram reaction of Schistosomiasis? 2.) what is the oxygen requirement for Schistosomiasis?arrow_forwardWhy does the medical microbiological community propose that physicians be more cautious in their prescription of antibiotics for each little sneeze and sniffle?arrow_forward