Table of Contents
- 1 Who is most affected by waterborne diseases?
- 2 Who is affected by unclean water?
- 3 Which is the first illness that was attributed to an animal carrier?
- 4 What are the diseases caused by contaminated water?
- 5 How many deaths are caused by contaminated water?
- 6 How does contaminated water affect humans?
- 7 Who discovered cholera causes?
- 8 Who is a carrier of a disease?
Who is most affected by waterborne diseases?
Most of the victims are young children, the vast majority of whom die of illnesses caused by organisms that thrive in water sources contaminated by raw sewage.
Who is affected by unclean water?
Women and children are the most affected — children because they’re more vulnerable to diseases caused by dirty water and women and girls because they often bear the burden of carrying water for their families for an estimated 200 million hours each day.
What did John Snow do about cholera?
After careful investigation, including plotting cases of cholera on a map of the area, Snow was able to identify a water pump in Broad (now Broadwick) Street as the source of the disease. He had the handle of the pump removed, and cases of cholera immediately began to diminish.
Which is the first illness that was attributed to an animal carrier?
Zika, originally identified in Africa more than 60 years ago, was first recognized in the Americas in Brazil in 2015. It has since spread to almost 50 countries, including the United States.
What are the diseases caused by contaminated water?
Contaminated water and poor sanitation are linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid, and polio.
How is water contaminated?
There are many sources of water contamination, including naturally occurring chemicals and minerals (for example, arsenic, radon, uranium), local land use practices (fertilizers, pesticides, concentrated feeding operations), manufacturing processes, and sewer overflows or wastewater releases.
How many deaths are caused by contaminated water?
Globally, at least 2 billion people use a drinking water source contaminated with faeces. Contaminated water can transmit diseases such diarrhoea, cholera, dysentery, typhoid, and polio. Contaminated drinking water is estimated to cause 485 000 diarrhoeal deaths each year.
How does contaminated water affect humans?
Contaminated water can harbor bacteria, such as those responsible for diarrhea, cholera, dysentery, typhoid, hepatitis A, and polio. According to the UN, every year, approximately 297,000 children under five die from diseases linked to poor sanitation, poor hygiene, or unsafe drinking water.
Who was John Snow cholera?
John Snow (1813–58). London practicing obstetrician/anesthesiologist who conducted a detailed epidemiologic investigation of London cholera epidemic adjacent to the now famous Broad St. pump. The Broad Street Pump, John Snow memorial, Broadwick Street (formerly Broad Street) in, London.
Who discovered cholera causes?
The germ responsible for cholera was discovered twice: first by the Italian physician Filippo Pacini during an outbreak in Florence, Italy, in 1854, and then independently by Robert Koch in India in 1883, thus favoring the germ theory over the miasma theory of disease.
Who is a carrier of a disease?
A carrier is an individual who carries and is capable of passing on a genetic mutation associated with a disease and may or may not display disease symptoms. Carriers are associated with diseases inherited as recessive traits.
How do germs spread from animals to humans?
These can include: Direct contact: Coming into contact with the saliva, blood, urine, mucous, feces, or other body fluids of an infected animal. Examples include petting or touching animals, and bites or scratches.