Staph infections, caused by the bacterium Staphylococcus aureus, are increasing in frequency and are more difficult to treat with antibiotics. Many staph infections are now caused by MRSA, and methicillin-resistant strain of S. aureus. What explains the more widespread phenomenon of MRSA prevalence in staph infections?
A. Vaccines became less effective because of the changes in the human immune system
B. Antibiotics caused mutations in the bacteria
C. hospitals decreased their sanitation practices
D. Resistant bacteria already existed from random mutations and the excessive use of antibiotics increased the frequency of the resistant strain
Select your answer:
Topics:
Lipid Metabolism Micro Immunology Nutrition Lipid Human Genome and Bioethics Review Cardiorespiratory System Health Issues Related to Digesting System and Eating Habits Viruses Biomolecules Asexual/Sexual Reproduction T Cells Stroke Who am Eye? Acute Responses to Exercise Philosophy Bacteria and Protist Review ImmunityOther quiz:
Human Anatomy › ViewWhen listening to music, your heartbeat will sync with the rythmn
A. TRUE
B. FALSE
SPED Law-lympics › View
“A person with autism” is an example of:
A. making the least dangerous assumption
B. using person first language
C. viewing the person as having autism
D. using language about a person’s disability