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Infectious Diseases

A lot of microorganisms and germs live in and on our bodies, and everywhere around us, in the air, soil, water. Most of the microorganisms are harmless and can cause a sick, but there are also helpful ones. Under certain conditions, the germs cause a specific disease.

Infectious diseases are disorders caused by four main kinds of pathogenic microorganisms:

  • Bacteria — one-cell organisms quickly multiplying and causing urinary tract infections and tuberculosis, strep throat.
  • Viruses — tiny organisms, smaller than bacteria and consisting of a piece of genetic code (DNA or RNA) with a coating of protein around it. They cause a multitude of diseases, invade host cells within a body and use these cells to replicate themselves.
  • Parasites — organisms surviving by living on or in other living organisms. They are transmitted to humans from animal feces and by mosquito bites.
  • Fungi — primitive plant-like organisms (mushrooms, mold, mildew, yeasts). They cause skin diseases, infect the lungs and nervous system.

The ways people can get an infectious disease are different. It is direct contact with a sick person through touching, kissing, sneezing, coughing, etc. or taking germs from mother to her baby prenatally. Microbes are also taken through indirect contact, when you touch some item and there are already germs on it. These germs could have settled out of the air or a sick person had touched these items earlier. More ways of getting germs include ingestion of contaminated food, water, particles of soil, for example, with unwashed vegetables or fruits, or when swimming in ponds. Infection is also transmitted through blood, bites of insects or animals.

An enormous variety of infectious diseases includes hepatitis A, B, C, varicella, pertussis, meningitis, herpes, staphylococcus, tetanus, enterovirus, coronavirus COVID-19, malaria, tuberculosis, diphtheria, measles, rubella, HIV, dengue, and many more.

Infectious Diseases - COVID-19 Symptoms

Example 1. Infectious Diseases - COVID-19 Symptoms

The diseases' symptoms and signs vary depending on the germ causing the infection. Each infectious disease has its own specific symptoms. The most common are fever, fatigue, muscle aches, runny nose and eyes, headache, nausea, vomiting, swelling, diarrhea, and many more.

Symptoms also range from mild to severe, and treatment correspondingly differs. Mild infections don't require hospitalization, the rest, plenty of fluids, and home remedies are enough. Life-threatening infections with severe states require obligatory hospitalization.

Preventing the spread of infectious diseases is realized through regular washing hands, using hand sanitizers, disinfection, using antibiotics sensibly, and strengthening the immune system. You have to stay home when having signs and symptoms of an infection, and don't share personal items. Most infectious diseases are also prevented by vaccines.

Infectious Diseases - Ebola Cycle

Example 2. Infectious Diseases - Ebola Cycle

Striving to create virology-related drawings and infographics, pay attention to ConceptDraw DIAGRAM software providing the Medical Virology solution. With the aid of this solution, you can make an overview of kinds of infectious diseases and their pathogens, offer the list of most dangerous infections and their symptoms. Elaborate on any more virology-related issues fast and simply.

Medical Virology solution provides a wide collection of predesigned virology-related symbols including design elements - virus symbols, virus symptoms, virus treatment, lifestyle, diagnostics, and many more. All they are fully ready for use in your high-quality diagrams and illustrations on the virology thematic.

Infectious Diseases - Rabies Virus

Example 3. Infectious Diseases - Rabies Virus

The medical virology infographics you see on this page were created in ConceptDraw DIAGRAM software using the Medical Virology Solution and show infectious diseases. These samples successfully demonstrate the solution's capabilities and professional results you can achieve. An experienced user spent 10-15 minutes creating each of these samples.

Use the powerful tools of the Medical Virology Solution for ConceptDraw DIAGRAM software to create your own infographics and diagrams of any complexity fast and easy, and then successfully use them in your work activity.

All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many more graphic formats) from the ConceptDraw STORE. The Medical Virology Solution is available for all ConceptDraw DIAGRAM users.

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