Viruses are very small infectious agents. They are made up of a piece of genetic material, such as DNA or RNA, enclosed in a coat of protein. Viruses attack your body’s cells and use the components of those cells to help them multiply. This process often damages or destroys the affected cells. A viral disease is any disease or health condition caused by a virus. Viral diseases
Viral respiratory illnesses are contagious and usually affect the upper or lower part of your respiratory tract.
Examples of respiratory diseases include:
Respiratory viruses are spread by droplets produced by coughing or sneezing. If someone with a viral illness coughs or sneezes around you and inhales the droplets, you can get the disease. The virus can also spread through contaminated objects, such as doorknobs, tabletops, and personal items. If you touch one of these things and then touch your nose or eyes, you can get sick.
The best way to prevent viral respiratory diseases is to practice good personal hygiene. Wash your hands often, cover your mouth when you cough or sneeze, and limit your interactions with people who show symptoms of respiratory illness. There is also a vaccine that can help reduce your risk of seasonal flu.
Viral respiratory illnesses usually resolve on their own. But over-the-counter (OTC) medications, including nasal decongestants, cough suppressants, and pain relievers, can help relieve symptoms. In addition, Tamiflu, an antiviral drug, is sometimes prescribed if a person is in the early stages of developing the flu.
Viral diseases result in a wide variety of symptoms that vary in character and severity depending on the type of viral infection and other factors, including the individual’s age and overall health. Common symptoms of viral illnesses include flu-like symptoms and restlessness.
Viral diseases are not treatable with antibiotics, which can only treat bacterial diseases and infections. However, the most common viral illnesses, the common cold, and the flu are usually self-limiting in healthy people. This means that the viral infection causes illness for a period of time, then it clears up and the symptoms go away as your immune system attacks the virus and your body heals.
In some cases, viral illnesses can lead to serious, potentially life-threatening complications, such as dehydration, bacterial pneumonia, and other secondary bacterial infections. People at risk of complications include those with a chronic illness or a suppressed or compromised immune system, and the very young and very old. In addition, some types of sexually transmitted viral infections, such as HIV/AIDS and HPV, can cause serious complications and death. Get immediate medical attention if you think you have a viral illness, especially if you are at risk of complications, or if you believe you have a sexually transmitted disease.
Coronavirus is a kind of virus. There are several different types, and some cause disease. Corona Virus, A coronavirus identified in 2019, SARS-CoV-2, has caused a pandemic respiratory disease, known as COVID-19. COVID-19 How does the coronavirus spread? So far, researchers know that the coronavirus is spread through airborne droplets and virus particles released when …
Chickenpox is a disease which is caused by the varicella-zoster virus. It can cause an itchy, blister-like rash. The rash first appears on the chest, back and face, and then spreads over the whole body, causing between 250 and 500 itchy blisters. Chickenpox can be serious, especially in children, teenagers, adults, pregnant women, and people …
Norovirus is a transferable virus , that cause vomiting and bowel infection (gastroenteritis). Norovirus can be found in vomit and the feces of infected person .Norovirus is not relatable with weak immune system or any specified age .People of every ages can get infected with norovirus. It spreads easily and quickly now ,how does the …
Hepatitis means inflammation of the liver. The liver is an important organ that processes nutrients, filters the blood, and fights infection. When the liver is inflamed or damaged, its function may be affected. Excessive alcohol consumption, toxins, certain medications, and certain medical conditions can cause this disease.Depending on its course, hepatitis can be acute, which …
Anthrax is a serious infectious disease caused due to gram-positive, rod-shaped bacterium known as Bacillus anthracis. It occurs naturally in soil and commonly infects domestic and wild animals worldwide. People can get sick from anthrax if they come into contact with infected animals or contaminated animal products. Anthrax can cause severe diseases in both humans …
Genital Herpes Overview social disease could be a common sexually transmit infection. Caused by the herpes simplex virus (HSV). The most means the virus spreads is thru sexual contact. When the initial infection, the virus lies dormant in your body and may activate many times a year. The social disease could be a common sexually …
Measles is AN acute infectious agent respiratory illness. It’s characterized by a symptom of fever (up to 105°F) and uncomfortableness, cough, coryza, and pinkeye – the 3 “C”s -, pathognomonic enanthem (Koplik spots) followed by a maculopapular rash. The rash typically seems regarding fourteen days when an individual has been exposed. The rash spreads from …
Dengue is a viral infection that is transferred to humans through the bite of infected mosquitoes. The main vectors that transmit the disease are the Aedes aegypti mosquito and, to a lesser extent, Ae. albopictus The virus that causes dengue, called dengue virus (DENV), is the fastest-growing mosquito-borne viral disease in the world. More than …
Chronic kidney disease, also called chronic kidney failure, is a gradual loss of kidney function. Your kidneys filter waste and extra fluid from your blood, which is then excreted in your urine. Advanced chronic kidney disease can cause dangerous levels of fluid, electrolytes, and waste in your body. In the early stages of chronic kidney …
It was later identified in humans in Uganda and the United Republic of Tanzania in 1952. From the 1960s to the 1980s, rare sporadic cases of human infection occurred in Africa and Asia, usually with mild disease. Zika virus The first record of Zika virus disease was reported from Yap Island (Federated States of Micronesia) …