Intro to global infections

Question 1

Infection - medical definition

Answer 1

The invasion and multiplication of microorganisms such as bacteria, viruses and parasites that are not normally present within the body

An infection may cause no symptoms and be sub clinical or it may cause symptoms and be clinically apparent

Question 2

Barriers to infection

Answer 2

While we do not go around in bubbles we do have barriers to infection

1) physical barriers
2) physiological barriers
3) chemical barriers
4) biological barriers

Question 3

The ten infection biggest killers

Answer 3

1/3 of all deaths world wide per year are due to infectious diseases

10) intestinal worm diseases - ~140,000 people
9) Whooping cough (pertussis) - 350,000 children
8) neonatal tetanus - 460,000 infants
7) measles - 1 million children
6) HIV/AIDS - 1 million
5) Hep B - 1.1 million
4) Malaria - 2.1 million
3) TB - 3.1 million adults
2) Diarrhoeal diseases (cholera, dysentery and typhoid) - 3.1 million
1) acute lower respiratory infections (e.g. pneumonia) - 4.4 million

Question 4

List of Who’s health threats

Answer 4

6) HIV
5) Dengue
4) Vaccine hesitancy
3) Ebola
2) Antimicrobial resistance
1) Global influenza pandemic