Infectious Disease

 Infectious Disease

Infectious can be defined As;

Disorders produced by organisms, such as bacteria, viruses, fungus, or parasites, are known as infectious diseases. Our bodies are home to a variety of creatures. In most cases, they are beneficial or even safe. But certain microbes have the potential to cause disease in specific situations. Some infectious diseases can spread from person to person.

Infectious Disease in Human

Some are spread by insects or different animals and you could contract others if you consume tainted food or water or come into contact with environmental organisms.

 

Fever and weariness are frequent signs and symptoms of infection, though they might vary depending on the organism that is causing it. While severe life-threatening illnesses may require hospitalization, mild infections may be treated with rest and home treatments.

Vaccines can prevent a lot of infectious diseases, including measles and chickenpox. Additionally, frequent, thorough hand washing can help shield you against the majority of contagious infections.

Symptoms of Infectious Disease

Symptoms of infectious Disease

Symptoms

Each infectious disease has distinct symptoms that are unique to it. Following are some general warning signs and symptoms that some infectious diseases share:

Fever

Diarrhea

Fatigue

Aching muscles Coughing

Causes of infectious diseases

Causes of Infectious Disease 

• Bacteria are one possible cause of infectious illnesses. Infections with the urinary system, TB, and strep throat are all brought on by these one-celled organisms.
• Viruses. The common cold to AIDS is among the many diseases caused by viruses, which are even more little than bacteria.
•  Fungi. Fungi are the root cause of numerous skin conditions, including athlete's foot and ringworm. Your brain system or lungs may contract an infection from a different fungus.
•  Parasites, a mosquito bite releases a small parasite that causes malaria. From animal excrement, humans may contract other parasites.

Direct contact of Infectious Disease

 An easy way to get most infections is to contact infected people and animals. Infections can be transmitted by direct contacts, such as:

 • From person to person. Infections are often spread by the direct transmission of bacteria, viruses, or other bacteria from person to person. This can happen when a person infected with a bacterium or virus touches, kisses, coughs or sneezes an uninfected person. These bacteria can also spread by exchanging fluids during sexual contact. Those who pass through the bacterium may have no symptoms of the disease, but may simply be carriers.

• From animals to humans. Bites and scratches by infected animals (even pets) can lead to illness and even fatalities in extreme situations. Handling animal excrement is also dangerous. For example, scooping the toilet can lead to toxoplasmosis.

• Fetal mother. Pregnant women can infect the fetus with pathogens that cause infectious diseases. Some bacteria can pass through the placenta and breast milk. Bacteria in the vagina can also infect babies during childbirth.

Indirect contact of infectious Disease

•      Pathogens;
•  Pathogens can also be transmitted by indirect contact. Many bacteria can remain inanimate, such as table tops, doorknobs, and faucet handles. For example, if you touch a doorknob with a cold or flu, you can pick up the bacteria left by him or her. Then, if you touch your eyes, mouth, or nose before washing your hands, you can get infected. 
• Insects Bite;
•  Some bacteria move from host to host, depending on the mediators of insects such as mosquitoes, fleas, lice, and mites. These carriers are known as vectors. Mosquitoes can infect Plasmodium or West Nile virus. Deer ticks can carry the bacteria that cause Lyme disease. 
•  Food contamination 
•  Pathogens can also be transmitted through contaminated food and water. This transmission mechanism allows bacteria to be passed on to many people via a single source. For example, Escherichia coli (E. coli) is a bacterium that is present in or on certain foods, such as undercooked hamburgers and unpasteurized fruit juices.

Risk factors

 While anyone can catch infectious diseases, you may be more likely to get sick if your immune system isn`t working properly. This may occur if:

 • You're taking steroids or other medications that suppress your immune system, such as anti-rejection drugs for a transplanted organ

 • You have HIV or AIDS

 • You have certain types of cancer or other disorders that affect your immune system

 In addition, certain other medical conditions may predispose you to infection, including implanted medical devices, malnutrition, and extremes of age, among others complications.

 Most infectious diseases have only minor complications. But some infections — such as pneumonia, AIDS, and meningitis — can become life-threatening. A few types of infections have been linked to a long-term increased risk of cancer:

 • Human papillomavirus is linked to cervical cancer

 • Helicobacter pylori is linked to stomach cancer and peptic ulcers

 • Hepatitis B and C have been linked to liver cancer

 In addition, some infectious diseases may become silent, only to appear again in the future — sometimes even decades later. For example, a person who has had chickenpox can develop shingles long in the afterlife.  Prevention

 Follow these tips to reduce your risk of infection.

 • Wash your hands. This is especially important before and after preparing meals, before meals, and after using the toilet. Also, avoid touching your eyes, nose, or mouth. This is a common way for bacteria to enter the body.

  • Get vaccinated. Vaccination can greatly reduce your chances of getting many illnesses. Keep up to date with the vaccinations you recommend and your children's vaccinations. • Stay home if you are ill. Do not go to work if you have vomiting,  diarrhea, or fever. Also, do not send your child to school with these signs.

 • Prepare food safely. Keep your kitchen countertop and other surfaces clean when preparing meals. Cook food to the proper temperature by checking the condition using a food thermometer. For minced beef, that means at least 160 F (71 C). 165 F (74 C) for poultry; at least 145 degrees Fahrenheit (63 degrees) for most other meats. Also, refrigerate the leftovers immediately. Do not leave cooked food at room temperature for long periods.

 • Practice safe sex. Always use condoms if you or your partner has a history of sexually transmitted diseases or dangerous behavior.

 • Do not hand over personal belongings. Use your toothbrush, comb, and razor. Avoid sharing cups or eating utensils. 

• Travel with caution. If you are traveling abroad, talk to your doctor about special vaccinations such as yellow fever, cholera, hepatitis A or B, and typhoid fever.