"Infectious Diseases and Their Prevention" Infectious Diseases and Immunity PPT Courseware 4

Description

"Infectious Diseases and Their Prevention" Infectious Diseases and Immunity PPT Courseware 4

learning target

1. Understand the concepts and characteristics of infectious diseases;

2. Be able to distinguish common infectious diseases from non-infectious diseases;

3. Master the three basic links of infectious disease epidemics and their preventive measures

1. The concept of infectious diseases:

Infectious diseases are contagious diseases caused by pathogens (bacteria, viruses and parasites) infecting the human body.

Several common pathogens

Pathogens, also called pathogenic organisms, are the collective name for microorganisms and parasites that can cause infectious diseases in humans and animals and plants. Including pathogenic bacteria, viruses, fungi, parasites, mycoplasma, chlamydia, etc.

Three basic links in the epidemic of infectious diseases

1. Source of infection

Source of infection: People and animals that have pathogens growing and multiplying in their bodies and expelling them.

2. Transmission route

Transmission route: The route by which pathogens leave the source of infection and reach healthy people.

3. Susceptible groups

Susceptible groups: Susceptible groups refer to people who lack immunity to a certain infectious disease and are susceptible to the disease.

Control sources of infection:

Early detection, early reporting, early diagnosis, early treatment, early isolation

Cut off transmission routes

Eliminate biological vectors such as mosquitoes, flies, lice, rats, bed bugs and develop good personal hygiene habits.

Protect vulnerable groups:

take more exercise;

Vaccination;

Get regular physical exams.

Discussion: Can the following behaviors transmit AIDS?

Dining with AIDS patients

Intravenous drug users share a syringe

Hitting an AIDS patient while exercising

Hug an AIDS patient

Transfusion of HIV-containing blood

Touch a doorknob touched by an AIDS patient

Sharing toilets with AIDS patients

Sharing a razor with an AIDS patient

Mosquito flies that have bitten AIDS patients bite normal people

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"Infectious Diseases and Their Prevention" PPT free download:

"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.

"Infectious Diseases and Their Prevention" PPT download:

"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...

"Infectious Diseases and Their Prevention" PPT:

"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: 2024-10-19

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 2 industry PPT template

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