Virus World

(NOTE: the findings below, originally published in the J. Medical Virology, have been widely DISPUTED by others in the field) 

Snakes -- the Chinese krait and the Chinese cobra -- may be the original source of the newly discovered coronavirus that has triggered an outbreak of a deadly infectious respiratory illness in China this winter. The many-banded krait (Bungarus multicinctus), also known as the Taiwanese krait or the Chinese krait, is a highly venomous species of elapid snake found in much of central and southern China and Southeast Asia. The illness was first reported in late December 2019 in Wuhan, a major city in central China, and has been rapidly spreading. Since then, sick travelers from Wuhan have infected people in China and other countries, including the United States.

Using samples of the virus isolated from patients, scientists in China have determined the genetic code of the virus and used microscopes to photograph it. The pathogen responsible for this pandemic is a new coronavirus. It's in the same family of viruses as the well-known severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV), which have killed hundreds of people in the past 17 years. The World Health Organization (WHO) has named the new coronavirus 2019-nCoV....

Published in the Journal of Medical Virology (22 January 2020):

https://doi.org/10.1002/jmv.25682

The first confirmed U.S. case of a traveler infected with the virus behind China’s continuing pneumonia outbreak has health authorities on alert to prevent it from spreading. The patient—a man in his 30s—returned from the country’s city of Wuhan (where the virus appears to have originated) to his home in Snohomish County in Washington State on January 15. He developed symptoms and sought treatment from his doctor on January 19, and a day later, a real time reverse transcription-polymerase chain reaction (rRT-PCR) test confirmed he had the virus. The patient appears to be doing well and was being treated this week at a hospital in Everett, Wash., and placed in isolation out of an abundance of caution, said a spokesperson for the U.S. Centers for Disease Control and Prevention in a news briefing on Tuesday afternoon.

The virus, called 2019 novel coronavirus (2019-nCoV), is known to have infected hundreds of people so far, and Chinese authorities have now reported at least 17 deaths. It was first identified in Wuhan late last year and is believed to have jumped from animals to humans at a local seafood market that also sold other wild animal meat. Authorities have since confirmed cases of human-to-human transmission. The pathogen is a coronavirus, a member of a family of viruses that include severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS), which caused major outbreaks in 2003 and 2012, respectively. Cases of 2019-nCoV have been confirmed in several other countries, including Thailand, Japan and South Korea. Three U.S. airports—in San Francisco, Los Angeles and New York City—began screening travelers from Wuhan last week. Such measures have now been expanded to two more airports—in Atlanta and Chicago—and passengers traveling to the U.S. from Wuhan will be funneled to those five locations. The risk to the U.S. public is low at this time, according to the Centers for Disease Control and Prevention. But the agency says it is working closely with other health organizations to contain the virus’s spread. 

National Institute of Allergy and Infectious Diseases director Anthony Fauci has been been closely following developments related to the new virus. Scientific American spoke with Fauci about 2019-nCoV’s likely mode of transmission, its similarity to other coronaviruses and the question of whether a vaccine is on the horizon....