sharon sanders
Editor-in-Chief & President
[h=1]How it Spreads[/h]
Coronaviruses are a large family of viruses that are common in many different species of animals, including camels, cattle, cats, and bats. Rarely, animal coronaviruses can infect people and then spread between people such as with MERS and SARS. Early on, many of the patients in the outbreak of respiratory illness caused by 2019-nCov in Wuhan, China had some link to a large seafood and live animal market, suggesting animal-to-person spread. However, a growing number of patients reportedly have not had exposure to animal markets, indicating person-to-person spread is occurring.
At this time, it’s unclear how easily or sustainably this virus is spreading between people. Chinese officials report that sustained person-to-person spread in the community is occurring in China. Person-to-person spread in the United States has not yet been detected, but it’s likely to occur to some extent. Cases in healthcare settings, like hospitals, may also occur.
When person-to-person spread has occurred with MERS and SARS, it is thought to have happened mainly via respiratory droplets produced when an infected person coughs or sneezes, similar to how influenza and other respiratory pathogens spread. Spread of SARS and MERS between people has generally occurred between close contacts.
It’s important to note that how easily a virus spreads person-to-person can vary. Some viruses are highly contagious (like measles), while other viruses are less so. It’s important to know this in order to better understand the risk associated with this virus. While CDC considers this is a very serious public health threat, based on current information, the immediate health risk from 2019-nCoV to the general American public is considered low at this time.
There is much more to learn about the transmissibility, severity, and other features associated with 2019-nCoV and investigations are ongoing. The latest situation summary updates are available on CDC’s web page 2019 Novel Coronavirus, Wuhan, China.
Page last reviewed: January 26, 2020
Content source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases
[h=1]https://www.cdc.gov/coronavirus/2019-ncov/about/transmission.html[/h]
Coronaviruses are a large family of viruses that are common in many different species of animals, including camels, cattle, cats, and bats. Rarely, animal coronaviruses can infect people and then spread between people such as with MERS and SARS. Early on, many of the patients in the outbreak of respiratory illness caused by 2019-nCov in Wuhan, China had some link to a large seafood and live animal market, suggesting animal-to-person spread. However, a growing number of patients reportedly have not had exposure to animal markets, indicating person-to-person spread is occurring.
At this time, it’s unclear how easily or sustainably this virus is spreading between people. Chinese officials report that sustained person-to-person spread in the community is occurring in China. Person-to-person spread in the United States has not yet been detected, but it’s likely to occur to some extent. Cases in healthcare settings, like hospitals, may also occur.
When person-to-person spread has occurred with MERS and SARS, it is thought to have happened mainly via respiratory droplets produced when an infected person coughs or sneezes, similar to how influenza and other respiratory pathogens spread. Spread of SARS and MERS between people has generally occurred between close contacts.
It’s important to note that how easily a virus spreads person-to-person can vary. Some viruses are highly contagious (like measles), while other viruses are less so. It’s important to know this in order to better understand the risk associated with this virus. While CDC considers this is a very serious public health threat, based on current information, the immediate health risk from 2019-nCoV to the general American public is considered low at this time.
There is much more to learn about the transmissibility, severity, and other features associated with 2019-nCoV and investigations are ongoing. The latest situation summary updates are available on CDC’s web page 2019 Novel Coronavirus, Wuhan, China.
Page last reviewed: January 26, 2020
Content source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases
[h=1]https://www.cdc.gov/coronavirus/2019-ncov/about/transmission.html[/h]