As of 2020, there have been 50 documented cases of human B virus infection since the identification of the virus in 1932, 21 of which led to death. Early treatment including aciclovir …

Oct 19, 2022 · These are the world's 12 most lethal viruses, based on their mortality rates or the number of people they have killed.

Sep 1, 2025 · Discover the top 10 most deadly viruses in 2025. Learn about the most dangerous diseases, fatality rates, and their global impact on human health.

Oct 5, 2025 · In this article, we will explore ten of the deadliest viruses ever discovered. Each has left an indelible mark on humanity, teaching us both how fragile we are and how resilient …

Smallpox, caused by the variola virus, stands as one of the deadliest viruses in human history, responsible for an estimated 300 million deaths in the 20th century alone.

Jun 27, 2025 · Human immunodeficiency virus, or HIV, has often been cited as the deadliest virus in human history. The World Health Organization (WHO) estimates that between 35.7 and …

6 days ago · These include Ebola and Marburg viruses both of which have no effective treatment, no vaccine and a fatality rate of up to 90%. Combines with some very unpleasant symptoms …