To tell:
Why do patients with methicillin-resistant Staphylococcus aureus (MRSA) as part of their normal microbiota pose a risk to other patients in a hospital?
Introduction:
The upper respiratory region is most prone to infection because of the low temperature. The nose has the cooler region of the respiratory system so that most of the microbes present in the nose. Staphylococcus aureus grows in the nasal cavity which is a gram-positive bacteria and it is an opportunistic pathogen.
Explanation of Solution
Methicillin-resistant Staphylococcus aureus (MRSA) is commonly known as antibiotic resistance. Antibiotics are useful in treating the microbial diseases. Antibiotic resistance means it has some changes in the bacteria that gain resistant to the microbial action.
MRSA is usually acquired from the hospital so it is referred to as hospital-associated or nosocomial infections. Methicillin resistance is resistance to the β-lactam antibiotics by a change in a single genetic element. The β-lactam antibiotics are cephalosporin, penicillin, and carbapenems.
This strain mostly occurs in the UK to the patients who are admitted to the hospital over a month. It does not need any treatment because it does not cause harmful effects. It does not infect a single person, the complete community is affected by this MRSA. MRSA is mostly existed as normal microbes because of the absence of any serious effects, although it infects the other peoples in a hospital.
The MRSA is an antibiotic-resistant bacteria that can infect the health care patients but it exists as a normal microbe is explained.
Want to see more full solutions like this?
Chapter 22 Solutions
Microbiology with Diseases by Body System (5th Edition)
- Why is it only necessary to include the exotoxin (in toxoid form) in vaccines for tetanus and botulism?arrow_forwardStaphylococcus aureus can be responsible for all of the following conditions excepta) impetigo. b) food poisoning.c) toxic shock syndrome. d) scalded skin syndrome.e) athlete’s foot.arrow_forwardWhich of these statements concerning cryptococcal meningoencephalitis is true?a) It is caused by a yeast with a large capsule.b) It is a disease of trees transmissible to humans.c) It typically attacks the meninges but spares the brain.d) Person-to-person transmission commonly occurs.e) It is seen only in persons who are immunocompromised.arrow_forward
- Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be part of the normal microbiome and beneficial but also be pathogenic?arrow_forwardWhich of the following statements about Pasteurella multocida is false?a) Infections generally respond to a penicillin.b) It can cause epidemics of fatal disease in domestic animals.c) It is commonly found in the mouths of biting animals, including humans.d) A vaccine is used to prevent P. multocida disease in people.e) Cat bites are more likely to result in P. multocida infections than dog bites.arrow_forwardWhich of these statements about tetanus is true?a) It can start from a bee sting.b) Immunization is carried out using tiny doses of killed C. tetani.c) Those who recover from the disease are immune for life.d) Tetanus immune globulin does not prevent the disease.e) It is easy to avoid exposure to spores of the causative organism.arrow_forward
- a) Explain how resident mouth microbiota are responsible for the formation of dental caries. b)Are all members of resident mouth microbiota capable of initiating dental caries?arrow_forwardWhich of the following is NOT true of bacterial exotoxins? 1. Important in the pathogenesis of many human diseases 2. Their toxic effect can be systemic, affecting cells distant from the primary site of infection 3. None of the other four answers (All are true of bacterial exotoxins) 4. Different exotoxins may affect different types of cells (e.g., nerves, gastrointestinal mucosa) 5. Some exotoxins have two components, A (active) and B (binding)arrow_forwardWhich of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidisarrow_forward
- Why can Koch’s postulates not be used to identify the causes of diseases due to polymicrobial infections?arrow_forwardWhy are staphylococcal infections becoming increasingly difficult to treat?arrow_forwardListeria monocytogenes Review some common causes of meningitis by placing them in the correct microbial categories. Coccidioides immitis Acanthamoeba Viral Meningitis Protozoan Meningitis Bacterial Meningitis Fungal Meningitis Cryptococcus neoformans Herpes simplex Streptococcus pneumoniae Наеторhilus influenzae West Nile Neisseria meningitidis Naegleria fowleriarrow_forward
Microbiology for Surgical Technologists (MindTap ...BiologyISBN:9781111306663Author:Margaret Rodriguez, Paul PricePublisher:Cengage Learning