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Polio was eliminated from most parts of the world as part of a decadeslong effort by the World Health Organization and partners to wipe out the disease. Until it is gone from the planet, the virus ...
The SARS-CoV-2 virus still kills thousands of people around the world each month, saddles still more with chronic symptoms known as Long COVID, and continues to evolve, with the highly ...
As you dive into your New Year’s resolutions, taking precautions to protect yourself from a quartet of infectious diseases can lessen your odds of starting off 2025 sick.
Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant within a cell, denoted as the lysogenic part of the viral life cycle. [1] A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which ...
In light of this incident, all known stocks of the smallpox virus were destroyed or transferred to one of two World Health Organization reference laboratories which had BSL-4 facilities—the Centers for Disease Control and Prevention (CDC) in the United States and the State Research Center of Virology and Biotechnology VECTOR in Koltsovo ...
During or after acute COVID infection, various dormant viruses can become reactivated. For instance, SARS-COV-2 can reactivate the Epstein-Barr virus, the virus that is responsible for infectious mononucleosis. This virus lies dormant in most people. There is some evidence of a relationship between its reactivation and long COVID.
The world’s first confirmed coronavirus pandemic occurred in 2002, when SARS-CoV-1 was reported in China. It spread to more than two dozen countries in North and South America and Europe before ...
For a novel influenza virus, WHO previously applied a six-stage classification to delineate the process by which the virus moves from the first few infections in humans through to a pandemic. Starting with phase 1 (infections identified in animals only), it moves through phases of increasing infection and spread to phase 6 (pandemic). [ 56 ]