People's Education Edition Biology for Grade 8, Volume 1
People's Education Edition Biology for Grade 8, Volume 2
People's Education Press High School Biology Compulsory Course 2
People's Education Edition seventh grade biology volume 1
Beijing Normal University Edition Seventh Grade Biology Volume 2
Beijing Normal University Edition Eighth Grade Biology Volume 1
People's Education Press seventh grade biology book volume 2
Beijing Normal University Edition Seventh Grade Biology Volume 1
Beijing Normal University Edition Eighth Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 1
Jiangsu Education Edition Seventh Grade Biology Volume 1
High School Biology Compulsory Course 1, published by People's Education Press
Jiangsu Education Edition Seventh Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 2
!["Infectious Diseases and Their Prevention" Infectious Diseases and Immunity PPT Courseware](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/eed3fb43-27d6-4005-ab25-a42f75076f93.webp)
Category | Format | Size |
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People's Education Edition Biology for Grade 8, Volume 2 | pptx | 6 MB |
Description
"Infectious Diseases and Their Prevention" Infectious Diseases and Immunity PPT Courseware
Knowledge goal
1. Understand the concept of infectious diseases and distinguish between common infectious diseases and non-infectious diseases;
2. Understand the concept of pathogens and types of pathogens;
3. List common infectious diseases and know their pathogens, transmission routes and preventive measures;
4. Master the three basic links of infectious diseases and their preventive measures;
5. By understanding the characteristics and prevention of HIV (AIDS), we can further understand the three basic links of the epidemic of infectious diseases.
Competence goals
Further develop the ability to ask questions, analyze problems and solve problems.
Emotional attitudes and values
By understanding the dangers and transmission routes of infectious diseases, we can develop good hygiene habits and how to get along with patients.
Infectious diseases are diseases caused by pathogens that invade the human body and can spread among people.
According to different pathogens, infectious diseases can be divided into:
1. parasitic infectious diseases
Ascariasis, taeniasis, kala-azar, schistosomiasis, trachoma, etc.
2. bacterial infectious diseases
Bacillary dysentery, whooping cough, typhoid, tetanus, etc.
3. viral infectious diseases
Rabies, influenza, hepatitis, Japanese encephalitis, AIDS, etc.
1. Basic links in the epidemic of infectious diseases
Analyze the following data:
1. Influenza (flu for short) is a highly contagious acute infectious disease caused by influenza viruses. There are large amounts of influenza viruses in the nasal discharge, saliva and sputum of influenza patients. When patients with influenza speak, cough, or sneeze, a large number of droplets containing influenza viruses will be ejected from the nasopharynx. The droplets are suspended in the air. After people around them inhale this virus-containing air, they may become infected. Get the flu. People who have been in contact with influenza patients or use tableware, clothes, etc. used by influenza patients may be infected with influenza. Compared with young adults, the elderly and children are more susceptible to influenza.
2. Tableware and chopsticks used by patients with hepatitis should be separated from those used by family members, otherwise family members may be easily infected with hepatitis. Tableware in restaurants must be strictly disinfected, otherwise customers may easily contract infectious diseases such as hepatitis, influenza, and bacillary dysentery.
What is the scientific basis for the above approach?
Answer: The purpose of separating the dishes and chopsticks used by hepatitis A patients from those of family members is to isolate the hepatitis A virus left on the dishes and chopsticks by hepatitis A patients from healthy people. This can prevent healthy people from being infected with hepatitis A. Tableware in restaurants must be strictly disinfected. This can kill bacteria and viruses on the tableware and prevent customers from contracting infectious diseases.
Infectious diseases must have three links: source of infection, route of transmission and susceptible groups before they can become popular among the population. Without any one of these links, infectious diseases cannot spread.
Transmission route - The path a pathogen takes to leave a source of infection and reach a healthy person.
The main ways of pathogen transmission are: airborne, waterborne, food-borne, contact-borne, biological vector-borne, etc.
Class exercises
Answer the following questions based on the picture above:
1. The virus that causes hepatitis A is __________;
2. Eating unclean clams is one of the popular causes of hepatitis A;
3. Hepatitis A patients are __________;
4. Xiaohong was __________ before she got sick and __________ after she got sick;
5. It is prohibited for healthy people to come into contact with patients and allows patients to take preventive medicines, which is a __________. Disinfecting the patient's feces and utensils is a __________.
6. Why is hepatitis B one of the world’s diseases that threatens human health? What are the current important measures to prevent hepatitis B?
Hepatitis B spreads widely;
There is currently a lack of specific drugs for chronic hepatitis B.
The most effective measure is to inject hepatitis B vaccine.
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"Infectious Diseases and Their Prevention" PPT Free Download The Epidemic of Infectious Diseases In 1348, a major outbreak of plague occurred in Europe. In just 5 years, the European population decreased by nearly 1/2. In 1918, the global influenza outbreak caused 20 million deaths, including 500,000 deaths in the United States.
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"Infectious Diseases and Their Prevention" PPT download article source "Political Science Research" 2003 Issue 3 At the end of 2002, SARS appeared in Guangdong Province and spread rapidly to other parts of my country in the following months, developing into a pandemic More serious natural disasters. In some parts...
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"Infectious Diseases and their Prevention" PPT Epidemic Characteristics of Infectious Diseases in Schools (1), Highly Prone to Occurrence Schools are places where people are highly concentrated, and people are in close contact with each other; if the health facilities are not good, the health system is not perfect, and the health habits are not good Okay, this is where infectious diseases are...
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Update Time: 2024-09-07
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