Deadly Infectious Diseases

Deadly Infectious Diseases – Almost all over the world proves that diseases that are often the cause of death are caused by infectious diseases. Infectious disease is a disease that can be transmitted through direct or indirect contact with a very dangerous impact on health.
In addition, infectious diseases are also very dangerous, so you must immediately check and treat them.

Some of these diseases have also claimed many lives and need to be prevented if symptoms have arisen. According to WHO, infectious diseases are caused by microorganisms, such as bacteria, viruses, and fungi. These microorganisms can spread from person to person or from animal to person. Although the rate of transmission of infectious diseases has decreased due to treatment and vaccination, infectious diseases are still very dangerous.

Infectious diseases can be transmitted in different ways, namely as follows:

1. Physical contact with an infected person, such as through touching and splashing the person’s body fluids.

2. Contact with contaminated surfaces or objects, food, blood, or water.

3. Bites of insects or animals capable of transmitting disease, such as mosquitoes.

Here are 5 very deadly infectious diseases

1. Covid-19

Covid-19 is an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV 2).

This Covid-19 infectious disease has attacked since the end of 2019 and is still endemic until 2021. This disease is a lot of anxiety and worry for the public because it can cause death.

Mode of spread: the process of transmitting COVID-19 can be through objects in the vicinity that have been contaminated or contaminated with the virus. Objects that have been contaminated when touched can cause transmission.

Ways of prevention: efforts to prevent this virus are by wearing a mask when going out of the house, always washing hands after leaving the house, using hand sanitizer or others.

2. Hepatitis

Hepatitis is a serious condition that causes inflammation of the liver. It is most often caused by a viral infection. Hepatitis is caused by five viruses, namely hepatitis A virus (HAV), hepatitis B virus (HBV), hepatitis C virus (HCV), hepatitis D virus (HDV), and hepatitis E virus (HEV).

Also Read : Know the Symptoms and How to Treat Autoimmune Diseases

Every year, hepatitis causes nearly 1.4 million deaths including HBV and HCV is responsible for about 90 percent of these deaths and the rest are caused by other types of hepatitis viruses.

Deployment way:

  1. Through the food or drink consumed
  2. Through bodily fluids such as saliva.
  3. Through the skin, such as the use of used syringes, tattoo tools, or acupuncture needles used by patients.
  4. Through the sharing of personal items, such as clothing and tableware.


  1. Maintain the cleanliness of food and drinks that enter the body.
  2. Avoid exchange of body fluids, such as saliva or blood transfusions that are not clear whether they are free of disease or not.
  3. Avoid sharing personal items such as clothes, cutlery, and toothbrushes with people with hepatitis.

3. TBC

Tuberculosis or TB for short is a dangerous infectious disease. This disease attacks a person’s lungs and is caused by the bacterium Mycobacterium tuberculosis.

Usually, the symptoms of TB are characterized by symptoms such as fever, weakness, weight loss, no appetite, chest pain, coughing all the time, and sweating at night.

Mode of spread: TB disease can be transmitted through the air. In addition, the use of the same items as tablespoons and glasses can be a means of transmitting these bacteria.

Methods of prevention: to prevent the disease, patients with active TB must wear masks and not share personal items with other people.

4. Dengue Fever

DHF is an infectious disease caused by the dengue virus from the female Aedes aegypti mosquito.

Symptoms that indicate dengue fever are high fever, joint pain, red spots appear, until the platelets drop drastically.

Mode of transmission: this disease is transmitted through the bite of the female Aedes aegypti mosquito.

Methods of prevention: efforts to prevent it are by cleaning puddles, closing water storage areas, draining bathtubs to be free from these mosquitoes.

5. Malaria

Malaria is a disease caused by Plasmodium infection. The parasite is caused by the Anopheles mosquito. Signs that indicate malaria are high fever, chills, body aches, nausea and vomiting.

Mode of transmission: Malaria is transmitted by the Anopheles mosquito.

How to prevent: maintaining cleanliness around is important. Use long suits to avoid these mosquito bites and other measures.