Question

• Choose several infectious diseases and analyze how they are spread, using the chain of infection.
  • Examples are AIDS, rabies, cryptosporidiosis, cholera, malaria, smallpox, syphilis.
• For each disease, how can the chain of infection be interrupted?

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Note: Please do not copy from internet because plagiarism is strictly prohibited

Answer 1

Diseases caused by living organisms like viruses and bacteria can be infectious and they can be passed from person to person through body secretions, insects or other means .some of the diseases are discussed here:

Sr.No.	Name	Symptoms	Spread	Prevention
1.	SARS (Severe Acute Respiratory Syndrome) Coronavirus (SARS-CoV).	Fever, malaise, myalgia, headache, diarrhoea, and shivering	Close person-to-person contact Transmitted most readily by respiratory droplets. when a person touches a surface or object contaminated with infectious droplets and then touches his or her mouth, nose, or eye	Frequent hand washing with soap and water or use of an alcohol-based hand rub Avoid contact with others if infected, prevent community spread
2.	Rabies Rabies virus (RV)	viral disease that causes inflammation of the brain in humans and other mammals paralysis, anxiety, insomnia, confusion, agitation, abnormal behavior, paranoia, terror, and hallucinations	Spread through the saliva of infected animals. Infected animals can spread the virus by biting another animal or a person.	Vaccines for infected, Proper vaccination of animals also
3.	Smallpox Variola virus	High fever, chills, headache severe back pain, abdominal pain ,vomiting	Airborne diseases tend to spread fast. Coughing, sneezing, or direct contact with any bodily fluids could spread the smallpox virus. In addition, sharing contaminated clothing or bedding could lead to infection.	Avoid contact with infected person Do not share clothes etc
4.	Syphilis (STI) Treponema pallidum	Headaches.swollen lymph nodes. fatigue,fever,weight loss,hair loss	Transmitted through shared needles. Avoid sharing needles if using injected drugs.	Avoid sharing needles if using injected drugs Have protected Sex
5.	Cholera Vibrio cholerae	Loss of skin elasticity , Dry mucous membranes, including the inside of the mouth, throat, nose, and eyelids , Low blood pressure , Thirst	Severe watery diarrhea, which can lead to dehydration and even death if untreated.	Avoid drinking contaminated water