diseases which can spread from one person to another
caused by:
bacteria
viruses
fungi
Non Communicable
diseases that cannot spread between people or between animals and people - last for a long time + get progressively work
e.g. cancer, asthma
Immune System
Defects in the immune system mean that an individual is more likely to suffer from infectious diseases - body less likely to defend itself against pathogen
Viruses
Viruses living in cells can be the trigger for cancers
Immune Reactions
Immune reactions initially caused by a pathogen can trigger allergies such as skin rashes and asthma.
Mental Health
Severe physical ill health can lead to depression and other mental illness
