Quick Answer: What Is The Most Common Virus In Humans?

What is the deadliest animal in the world?

Comparative listSource: CNETAnimalHumans killed per year1Mosquitoes1,000,0002Humans (murder only)475,0003Snakes50,0004 more rows.

What is the biggest killer in the world?

cardiovascular diseaseThe biggest single killer is cardiovascular disease, which affects the heart and arteries and is responsible for every third death. This is twice the rate of cancers – the second leading cause – which account for about one in six of all deaths.

What are the 4 types of infectious diseases?

This article will focus on the most common and deadly types of infection: bacterial, viral, fungal, and prion.

What is the most common infectious disease?

So, without further ado, here are the five most common infectious diseases.Hepatitis B. According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population. … Malaria. … Hepatitis C. … Dengue. … Tuberculosis.

What is the deadliest disease in history?

Cholera, bubonic plague, smallpox, and influenza are some of the most brutal killers in human history. And outbreaks of these diseases across international borders, are properly defined as pandemic, especially smallpox, which throughout history, has killed between 300-500 million people in its 12,000 year existence.

What virus is common now?

Among the many viruses we see causing respiratory illness right now, the influenza virus (commonly called “the flu”) can be particularly severe. Infection with the influenza virus causes a sudden onset of fever, chills, dry cough, and muscle aches.

What are 5 general symptoms of an infectious disease?

General signs and symptoms common to a number of infectious diseases include:Fever.Diarrhea.Fatigue.Muscle aches.Coughing.

What are the most common viruses?

These include:smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.polio.rabies.Ebola and Hanta fever.More items…•

What are the 10 most common diseases?

Heart disease. Share on Pinterest Many of the top 10 causes of death are preventable through lifestyle changes and regular checkups. … Cancer. Deaths in 2017: 599,108. … Unintentional injuries. … Chronic lower respiratory disease. … Stroke and cerebrovascular diseases. … Alzheimer’s disease. … Diabetes. … Influenza and pneumonia.More items…

How does the body kill viruses?

Viruses make us sick by killing cells or disrupting cell function. Our bodies often respond with fever (heat inactivates many viruses), the secretion of a chemical called interferon (which blocks viruses from reproducing), or by marshaling the immune system’s antibodies and other cells to target the invader.

What are infectious diseases list the 5 most common ones?

Infectious diseases can be any of the following:Chickenpox.Common cold.Diphtheria.E. coli.Giardiasis.HIV/AIDS.Infectious mononucleosis.Influenza (flu)More items…

What are the top 5 common viral infections?

Other common viral diseases include:Chickenpox.Flu (influenza)Herpes.Human immunodeficiency virus (HIV/AIDS)Human papillomavirus (HPV)Infectious mononucleosis.Mumps, measles and rubella.Shingles.More items…

How do you fight a virus?

For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Antibiotics do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.

How long did the 1918 flu last?

While the global pandemic lasted for two years, a significant number of deaths were packed into three especially cruel months in the fall of 1918.