Infectious Diseases
Pathogen
Anything that can invade the body and cause disease
Any disease causing microbe
Bacteria
Protists
Viruses
Fungi
Cholera
Vibrio. Cholerae (Bacteria)
Water Borne
Prevalent in places with poor sanitation and water treatment
Releases a toxin that causes Cl- ions to enter your large intestine lumen and water to flow into the lumen from the gut lining via osmosis
This will then cause severe diarrhoea and you can die from dehydration and lack of electrolytes
Economic impacts
Lots of people are dying
Hospitals overloaded
Lots of money needs to be spent on overhauling sewage system
Lack of workforce
In modern society poor people are more at risk
Social impacts
Whole families and communities can die out
Carers are scared that they will be exposed to the disease
Treatment
Oral/intravenous rehydration therapy
Antibiotics
Transmissible
Any disease that can be passed from person to person
Transmissible = HIV
Non-Transmissible = Cancer
Malaria
Malaria causing parasites
Plasmodium Vivax 44
Plasmodium Falciparum
Plasmodium Ovale
Plasmodium Malariae 77
Treatment
The best treatment is preventative measures such as malaria vaccine (but this doesn’t last long), or malaria pills
There is a treatment if you get malaria but it is slow and ineffective