1. Ebola virus – world’s deadliest disease Ebola is most feared for the internal and external bleeding it can cause in victims owing to damage done to blood vessels. It was discovered in 1976, and since then the majority of the outbreaks have appeared in parts of Africa. At least 12,800 deaths have occurred globally since 1976. According to WHO, it is thought that fruit bats are naturals Ebola virus hosts.
Symptoms – fever, Sore throat, severe headache, Muscle pain, Vomiting, Diarrhea, bleeding.
2. Rabies – Rabies, a virus that attacks the nervous system and is fatal once symptoms develop, is passed to humans through bites and scratches from infected animals. In Worldwide more than 50,000 people die of Rabies every year. Spread through infected animals saliva. Occurs mainly in skunks, raccoons, foxes and bits, who can infect domestic cats, dogs, livestock.
Symptoms – Fever, depression, Agitation, Painful spasms followed by excessive saliva.
3. HIV – In the modern world, the deadliest virus of all may be HIV AIDS. HIV AIDS is the most advance stage of HIV infection. By the close of 2015, around 1,200,900 people were HIV-positive. People transmit HIV in bodily fluids, including Blood, semen, vaginal secretions, anal fluids, breast milk.
Symptoms – headaches and other aches and pains, swollen lymph nodes, recurrent fevers, night sweats, fatigue, nausea, vomiting, diarrhoea, weight loss, skin rashes, recurrent oral or vaginal yeast infections, pneumonia, shingle
4. Smallpox- variola virus (smallpox virus) emerged and began causing illness and deaths in human populations, with smallpox outbreaks occurring from time to time. After the success of vaccination, the last natural outbreak of smallpox in the United States occurred in 1949. One of the reasons smallpox was so dangerous is because it’s an airborne disease. Airborne diseases tend to spread fast. Coughing, sneezing, direct contact with any bodily fluids could spread the smallpox virus fast. Because of sharing contaminated clothing or bedding could lead to infection.
Symptoms – high fever, chills, headache, severe back pain, abdominal pain, vomiting
5. Dengue – Dengue fever is a very painful, mosquito-borne disease caused by any one of four closely related dengue viruses. These viruses are related to the viruses that cause West Nile infection and type of Yellow fever. An estimated 400 million dengue infections occur worldwide every year, with about 96 million resulting in illness. Dengue virus first appeared in the 1950s in the Philippines and Thailand and spread throughout the tropical and subtropical regions of the globe.
Symptoms- High fever, headache, pain behind the eyes, muscle pain, Fatigue, Vomiting, Skin rash, Mild bleeding.
6. Rotavirus – Now, vaccines are available to protect children from rotavirus, the leading cause of severe diarrheal illness among babies and young children. The WHO estimates that worldwide, 450,000 children younger than age 6 died from rotavirus infection in 2008. This virus is present in stool and is mainly transmitted between hand and mouth contact.
Symptoms -The most common symptom of rotavirus is severe diarrhoea. Children can also experience Vomiting, severe fatigue, a high fever, irritability, dehydration, abdominal pain.
7. SARs COV – The virus that causes a severe acute respiratory syndrome, or SARS, first appeared in 2002 in the Guangdong province of southern China. The virus likely emerged in bats, initially, then hopped into nocturnal mammals called civets before finally infecting humans. After triggering an outbreak in China, SARs COV spread to 26 countries around the world, infecting more than 6000 people and killing more than 770 peoples.
Symptoms – Fever, chills and body aches, and often progresses to pneumonia, a severe condition in which the lungs become inflamed and fill with pus.
8. SARs Cov-2 ( COVID-19 coronavirus) – belongs to the same large family of viruses as SARS-COV, known as coronavirus and was first identified in December 2019 in the Chinese city of Wuhan. The virus originated in bats, like SARS-COV, and passed through an intermediate animal before infecting peoples.
Symptoms include: Fever, Coughing, Trouble breathing, Fatigue, Chills, sometimes with shaking, Body aches, Headache, Sore throat, Loss of smell or taste, Nausea, Diarrhea
9. MERS-COV – The virus that causes Middle East respiratory syndrome, or MERS, sparked an outbreak in Saudi Arabia in 2012 and another in South Korea in 2015. The MERS-COV virus belongs to the same family as SARS-COV and SARS-CoV-2 and likely originated in bats, as well. The disease infected camels before passing into humans.
Symptoms – triggers fever, coughing and shortness of breath in infected people.
10. Plague – The world dangerous disease bubonic plague is a plague that started Turkey in 1347. the plague is a dangerous bacterial diseases infection that can be deadly. This bacterium is found in animals mainly and transmitted to humans through fleas. Nowadays, there are 1000 to 2000 reported worldwide each year with the highest incidence in Africa. Bubonic plague, Septicemic plague, pneumonic plague – types of plagues. Spread through scratches or bites of infected cats,Symptoms- chills, fever, headache, muscle pain, seizures, pain and swelling in groin, armpits or neck.
This is the world’s deadliest disease outbreaks and the world’s dangerous disease which is the deadliest virus in the world.