Colds and flu are caused by viruses. In general, viruses are not affected by ant
ID: 83333 • Letter: C
Question
Colds and flu are caused by viruses. In general, viruses are not affected by antibiotics. At one time, physicians routinely prescribed antibiotics for patients with these diseases in order to control possible bacterial infections that might follow the viral infections. For example, bacterial pneumonia is often a secondary infection that follows viral diseases, such as the flu. Most physicians are discontinuing the practice of prescribing antibiotics for flu patients. How is this change related to the problem of antibiotic drug resistance in bacteria? Which of the two organisms is Gram-positive? Which is Gram-negative?Explanation / Answer
8 During infection like flu and common cold antibiotics won’t work on viruses instead they cause more harm than good and can lead to more bacterial infections and may cause more resistance bacteria against antibiotics as antibiotics affect only bacteria and not viruses as bacteria and viruses have two different mechanisms of replications and divisions in event of usage of antibiotics in viral infections such as flu may lead to greater antibiotic resistance bacterial infection. Hence physicians are not prescribing antibiotics in case of viral infections.
9 Gram positive bacteria
Streptococcus Pyogenes which may cause pyogenic infections
Corynebacterium diptheriae which causes diptheria
Gram negative bacteria.
Salmonella typhi which cause thyphoid
Klebsiella which can cause meningitis