health and disease

• health is the state of physical and mental wellbeing
• people with immune system problems have an increased chance of suffering from communicable diseases as the body is less likely to be able to defend itself agaisnt the pathogen
• some types of cancer can be triggered by infection by certain ciruses. for example hepetitis virus can cause long term liver infections which can lead to an increase chance of developing liver cancer
• HPV can cause cervical cancer in women