(c) Write the positive agent of typhoid, malaria, cholera, dysentery and hepatitis.
Answers
TYPHOID:-Typhoid is a bacterial infection that can lead to a high fever, diarrhea, and vomiting. It can be fatal. It is caused by the bacteria Salmonella typhi.
MALARIA:- Malaria is a serious, life-threatening, and sometimes fatal, disease spread by mosquitoes and caused by a parasite. Malaria was a significant health risk in the U.S. until it was eliminated by multiple disease-control programs in the late 1940s. The illness presents with flu-like symptoms that include high fever and chills.
CHOLERIA:- Cholera is an acute epidemic infectious disease. It is characterized by watery diarrhea, extreme loss of fluid and electrolytes, and severe dehydration. It can be fatal.
DYSENTERY:- Dysentery is an inflammation of the intestine characterized by the frequent passage of feces with blood and mucus. Like cholera, dysentery is spread by fecal contamination of food and water, usually in impoverished areas with poor sanitation.
HEPATITIS:- Hepatitis is an inflammation of the liver. The condition can be self-limiting or can progress to fibrosis (scarring), cirrhosis or liver cancer. Hepatitis viruses are the most common cause of hepatitis in the world but other infections, toxic substances (e.g. alcohol, certain drugs), and autoimmune diseases can also cause hepatitis.
- Malaria is a mosquito-borne disease caused by a plasmodium parasite and spread by the Anopheles mosquito. In 2015, there were 214 million cases of and 438,000 deaths due to malaria.
- Typhoid is a bacterial infection that can lead to a high fever, diarrhea, and vomiting. It can be fatal. It is caused by the bacteria Salmonella typhi.
- Cholera is a disease caused by bacteria that produce a watery diarrhea that can rapidly lead to dehydration
- Dysentery is an infectious disease associated with with severe diarrhea.
- Hepatitis A is a virus that causes infection and inflammation of the liver. It rarely results in serious liver damage or death and does not develop chronic liver disease.
- Unlike hepatitis B or C, it does not lead to chronic liver disease, but it can result in significant loss of income and absence from work or school. Once a person has had it, they will have immunity. They will never be infected again.