What is the “host” in infectious disease epidemiology?
Ans:- Host refers to the organisms ( e. g. Humans, animals) capable of being infected by a specific agent. There are intrinsic factors that influence an individual's exposure, susceptibility or response to a causative agent. Many infectious disease microbes live in the mucus of the host's nose and mouth.
A host species that transmits an infectious disease to another host species is called a ________ of the disease, and a disease that is transmitted in this way is called a __________
There are many ways that an environmental infectious disease can be transmitted to a host. Describe the differences between vectorborne diseases and zoonotic diseases. What type of infectious disease is associated with each of these categories?
Briefly describe an infectious disease and how it affects a human host.
Review what you have learned about the following historical figures in infectious disease: Ignaz Semmelweis Joseph Lister Louis Pasteur Edward Jenner Florence Nightingale For your first post, research one of these historical figures and describe his/her role in the evolution of infectious disease epidemiology and infectious disease management.
Match the following types of epidemiology with the appropriate definition. •Patterns of signs and symptoms •Useful to indicate an origin in bioterrorism Answer 1Choose...Syndromic Epidemiology, Chronic Disease Epidemiology, Infectious Disease Epidemiology, Classical Epidemiology, or Clinical Epidemiology •Study long-term effects on chronic disease risk of physical and social exposure •Dependent on sampling and statistical methods Answer 2Choose...Syndromic Epidemiology, Chronic Disease Epidemiology, Infectious Disease Epidemiology, Classical Epidemiology, or Clinical Epidemiology •Investigates occurrence of epidemics of communicable diseases •Dependent heavily on laboratory support...
fascioloides magna infectious stage for definitive host: diagnostic stage for definitive host:
Epidemiology is defined as the study of diseases among populations. How does epidemiology relate to microbiology? What is the difference between an epidemiologist and a microbiologist? If you were an epidemiologist interviewing someone with an infectious disease that could lead to an epidemic, what are some questions you might ask?
Infectious diseases can emerge through genetic, social and behavioural changes in the host and/or pathogen. Provide: (a) two examples of genetic changes, and (b) two examples of social or behavioural changes that have enabled new infectious diseases or new strains to emerge. In all four examples that you give, name the pathogens and explain how the changes led to disease emergence. Mandatory word limit: Write no more than 200 words in total.
Imagine you work in the infectious disease department of the Centers for Disease Control and Prevention. Recently, an unknown emerging disease has begun to spread in the United States that seems to show symptoms similar to influenza and measles. Not all people infected show all the symptoms, and current vaccinations do not prevent a person from catching the unknown disease. Apply the knowledge you know now about infectious agents and means of transmission. For this assignment: Provide a brief overview...
1.A research group is investigating the potential infectious nature of a disease. From ulcerative skin lesions in mice they were able to grow as pure cultures a Gram negative microorganism. They inoculated this microorganism into the skin of healthy mice and reproduced the same ulcerative skin lesions. According to the Koch’s postulated these experimental evidences are sufficient to confirm that the Gram negative microorganism is the causative agent of the studied disease. (T/F) 2. Exotoxins can cause tissue damage during...