Infectious Diseases

Globally, communicable illnesses are a major source of mortality and impairment. Various pathogens such as viruses, bacteria, parasites, and fungi are responsible for causing infectious diseases. Such agents of infection can be transmitted from one person to another or through contaminated food, water sources. If left untreated, such illnesses can be hugely harmful and even fatal, hence making it essential to seek medical attention at the earliest.

Our immune system is our body’s first line of defense against infectious diseases. A strong immune system is essential for our well-being as it helps us protect against any harmful microorganisms, infections. Unfortunately, some individuals may have a weakened or compromised immune system that may not be able to successfully combat the infections. In these cases, the infection’s severity could be too overwhelming for their body to fight off. This makes it important for us to understand the causes of infectious disease and take preventive measures to reduce our risk of becoming infected.

Infectious disease is the spread of disease-causing agents from an infected person to other people. It is caused by the spread of a pathogen from one individual to another, which may or may not occur directly through physical contact. The most common causes are via airborne droplets, such as when coughing or sneezing. Infectious diseases are caused by pathogens and can cause the following symptoms:

• fever;
• pain;
• malaise;
• diarrhea;
• vomiting;
• nausea.

The most common causes are via airborne droplets, such as when coughing or sneezing.