Tropical Medicine and Infectious Diseases

Infectious Diseases

Infectious diseases are disorders caused by organisms like bacterium, viruses, fungi or parasites. Several organisms sleep in and on our bodies. They are unremarkably harmless or may be useful, however below sure conditions, some organisms might cause illness. Some infectious diseases are passed from person to person. Some are transmitted by bites from insects or animals. And others are non-inheritable by ingesting contaminated food or water or being exposed to organisms within the surroundings. Signs and symptoms vary looking on the organism inflicting the infection; however usually embody fever and fatigue. Delicate infections might reply to rest and residential remedies, whereas some serious infections might need hospitalization. Several infectious diseases, like contagious disease and varicella, is prevented by vaccines. Frequent and thorough hand-washing additionally helps defend you from most infectious diseases.

Types of Infectious Diseases:

Infectious diseases can be bacterial, viral, parasitic or fungal. There is also a group of rare diseases called infectious spongiform encephalopathy (TSE).

• Viral Infections: A virus is a piece of information (DNA or RNA) inside a protective shell (capsid). These viruses are smaller than cells and cannot reproduce on their own. They get into your brain and use the cellular machinery to make copies of themselves.
• Bacterial Diseases:  Bacteria are single-celled organisms whose instructions are written into short DNA sequences. Bacteria are everywhere, including on our bodies and skin. Most of these bacteria are harmless and even beneficial, but some bacteria release toxins that can make you sick.
• Fungal Disease: Like bacteria, there are many fungi. They are in and on your body. You can get sick when you have too many yeast infections or when fungal infections enter your body through your mouth, nose, or skin cracks.
• Parasitic Diseases: Parasites use the body of other organisms to survive and reproduce. Parasites include worms (worms) and some single organisms (protozoa).
• Transmissible Spongiform Encephalopathy (TSE/prion disease): TSE is caused by prions, a defect that causes other proteins in your body (usually those in your brain) to become defective. Your body can't use or get rid of these proteins, so they build up and make you sick. Prions are a rare form of infection.