Infectious disease and response

Question 1

Virus cycle (6)

Answer 1

A virus enters a cell

Substances in the cell begin to strip of the virus outer coat of
protein

The nucleic acid in the center of the virus is released

The nucleic acid gets into the cell’s chemical manufacturing system

The cell ignores its own chemical needs and switches to making new viruses

The cell is sometimes destroyed in the process. Many of the new viruses are released to infect other cells.

Question 2

Problems with antibiotics

Answer 2

-Over use of antibiotics leads to them becoming less effective
-Failing to complete the fully prescribed course by a doctor

-Use of antibiotics in farming

Question 3

What could occur if a patient fails to complete the antibiotics course

Answer 3

If they do not take the entire course. Some of the bacteria may be naturally muted to be resistant to this antibiotic and could be survive the course is only partly completed. These bacteria then multiply and then what your left is, is an stronger infection made of just stronger bacteria. Which will require a stronger and longer course of antibiotics

Question 4

Ways to reduce antibiotics resistance

Answer 4

• Only take antibiotics when necessary
  -Treat specific bacteria with specific antibiotics
  -High hospital hygiene levels, including regular hand washing by staff and visitors
  -Patients who are infected with antibiotic resistant strains of bacteria should be isolate from other patients