MRSA and Norovirus

Question 1

Name the 4 main sites of colonisation of Staph aureus

What is MRSA, how does it have this resistance

Answer 1

Anterior nares- Main one
Axillae
Groin
GI tract

MRSA: A type of Staph aureus that is resistant to Beta-lactam antibiotics

MRSA makes penicillin binding Protein 2a which confers the resistance

Question 2

Name 4 symptoms of MRSA infection

Answer 2

Pneumonia
Endocarditis
Joint infections
Skin or soft tissue infections

Question 3

What are 2 ways that MRSA is spread

Answer 3

Direct contact

Contact with contaminated surfaces

Question 4

What is the treatment for MRSA

Answer 4

7-10 day course of oral Bactrim (Inhibits nucleic acid synthesis)

If doesn’t work, use Clindamycin
If that doesn’t work, Doxycycline

Question 5

Name 3 important infection controls for MRSA

Answer 5

• Screening
• Hand washing
• Isolation

Question 6

Outline 3 structural features of Norovirus

Answer 6

Non-enveloped
Single stranded
RNA

Question 7

What are 2 signs that Norovirus is being spread

What are the 2 methods of transmission of Norovirus

Answer 7

• Rapid spreading
• Gastroenteritis outbreaks
• Fecal oral
• Respiratory

Question 8

What are 4 complications of infection by Norovirus

Answer 8

Nausea
Vomiting
Diarrhoea
Gastroenteritis