Bubonic plague, responsible for three pandemics throughout history—including the deadliest pandemic in recorded human history, the Black Death—still has no cure or vaccine.Mydoom. Mydoom is arguably the worst malware in history, causing more than $38 billion worth of damages in 2004.By death toll
| Rank | Epidemics/pandemics | Death toll |
|---|---|---|
| 1 | Spanish flu | 17–100 million |
| 2 | Plague of Justinian | 15–100 million |
| 3 | HIV/AIDS pandemic | 43 million (as of 2024) |
| 4 | Black Death | 25–50 million |
What is the oldest virus : Researchers identified remnants of herpesvirus, papillomavirus and adenovirus in the DNA of Neanderthals that lived 50,000 years ago, making it the oldest human virus found.
What is the scariest virus
Top 10 most dangerous viruses in the world
- Marburg virus. The most dangerous virus is the Marburg virus.
- Ebola.
- Hantavirus.
- Bird flu virus.
- Lassa virus.
- Junin virus.
- The Crimea-Congo fever.
- The Machupo virus.
Which disease has no cure : cancer. dementia, including Alzheimer's disease. advanced lung, heart, kidney and liver disease. stroke and other neurological diseases, including motor neurone disease and multiple sclerosis.
ILOVEYOU, sometimes referred to as the Love Bug or Loveletter, was a computer worm that infected over ten million Windows personal computers on and after May 5, 2000. It started spreading as an email message with the subject line "ILOVEYOU" and the attachment "LOVE-LETTER-FOR-YOU. TXT.
Here are the top four infectious disease by number of deaths:
- COVID-19: 1.24 million.
- Tuberculosis: 1.13 million.
- HIV/AIDS: 630,000.
- Malaria: 620,000.
Who was the first virus
Two scientists contributed to the discovery of the first virus, Tobacco mosaic virus. Ivanoski reported in 1892 that extracts from infected leaves were still infectious after filtration through a Chamberland filter-candle. Bacteria are retained by such filters, a new world was discovered: filterable pathogens.Scientists hunting for unknown pathogens discovered P. sibericum nestled deep inside a core of ancient Siberian permafrost that was extracted in 2000 from Kolyma, in the Russian Far East. They resurrected the 30,000-year-old virus by exposing a permafrost sample to amoebas, which are the only known P. sibericum hosts.The varicella-zoster virus (VZV), the same virus that causes chicken pox, can continue to live in the nerve cells after an attack of chickenpox. It may be reactivated on occasion, to cause shingles in some people. It is among the most painful conditions known. Age and weakened immunity predispose to activation.
Successfully eradicated diseases
The world has successfully eradicated two diseases: Smallpox was declared eradicated in 1980. Rinderpest was declared eradicated in 2011.
What rare disease has no cure : Hutchinson-Gilford Progeria Syndrome (HGPS)
HGPS is an extremely rare disease that has a frequency of one in four million. Since 1886, only 130 cases have been reported in scientific literature. Currently, there is no known cure for this condition. Patients affected by this condition appear to age at an early age.
What is the Zeus virus : Zeus is a Trojan horse malware package that runs on versions of Microsoft Windows. It is often used to steal banking information by man-in-the-browser keystroke logging and form grabbing. Zeus is spread mainly through drive-by downloads and phishing schemes.
What is the deadliest computer virus
11 most dangerous computer viruses
- Mydoom. Considered by many to be the most dangerous computer virus in history, the Mydoom virus cost around $38 billion worth of damage in 2004.
- Sobig. The Sobig virus is a computer worm.
- Conficker.
- Klez.
- ILOVEYOU.
- WannaCry.
- Sasser.
- Zeus.
Some of the common medical conditions of people requiring care at the end of life include:
- cancer.
- dementia, including Alzheimer's disease.
- advanced lung, heart, kidney and liver disease.
- stroke and other neurological diseases, including motor neurone disease and multiple sclerosis.
- Huntington's disease.
- muscular dystrophy.
What's the deadliest disease Ischemic heart disease is the leading cause of death around the globe. Other conditions, such as stroke, COPD, lower respiratory infections, and respiratory cancers, also account for a significant portion of deaths each year.
Do viruses have DNA : Chemical Composition and Mode of Replication: The genome of a virus may consist of DNA or RNA, which may be single stranded (ss) or double stranded (ds), linear or circular. The entire genome may occupy either one nucleic acid molecule (monopartite genome) or several nucleic acid segments (multipartite genome).