Human coronavirus is composed of 7 different coronaviruses that infect humans.
We recognize the specific viruses by their Human Coronavirus Types.
Influenzas, the flu, Wuhan China 2019 Novel (never seen before) Coronavirus Asian flu, bird flu, swine flu, Spanish flu, Cholera, bubonic plague and smallpox, are non-pharmaceutical intervention viruses, and controlled only by running their course, (killing millions), use of disinfectants, quarantine, good personal hygiene, and limitations of public gatherings. The reason for non-pharmaceutical intervention, is that we have no known manmade drugs to control or kill virus. All of these diseases are caused by viruses. However there has been an effective patented medicine, (now an over the counter supplement) that has been used to treat and kill all of these viruses for 123 years, Colloidal Silver.
Coronaviruses are named for the crown-like spikes on their surface. There are four main sub-groupings of coronaviruses, known as alpha, beta, gamma, and delta. Alpha- and Betacoronaviruses mainly infect bats, but they also infect other species like rabbits, camels, cattle, cats and humans.
Human coronaviruses were first identified in mid-1960. The seven coronaviruses that can infect people are:
Common human coronaviruses
1. Human coronavirus 229E (alpha coronavirus) is a single-stranded, positive-sense, This virus and coronavirus OC43, are among the viruses responsible for the common cold. Coronaviruses are associated with lower respiratory tract episodes upper respiratory tract illnesses.
2. Human coronavirus NL63 (alpha coronavirus) or HCoV-NL63 is a species of Alphacoronavirus that was identified in 2004. Infection with the virus has been confirmed in various countries, indicating a worldwide distribution. This virus has been shown to infect children and the immunocommpromised, who presented with either mild upper respiratory symptoms or more serious lower respiratory tract involvement like croup and bronchiolitis.
3. Human coronavirus HCoV-OC43 (beta coronavirus) (and HCoV-229E,)are also among the known viruses that cause the common cold. Both viruses can cause severe lower respiratory tract infections, including pneumonia. The evolutionary history of this virus is; from bats to cows (bovines)from cows to pigs (porcine) and finally from pigs to humans.
4. Human coronavirus HKU1 (beta coronavirus) has been described predominantly among children, and a novel coronavirus, coronavirus HKU1 (CoV-HKU1), associated with community acquired pneumonia.
Other human coronaviruses
5. Human coronavirus MERS-CoV (beta coronavirus) that causes Middle East Respiratory Syndrome, or MERS) MERS-CoV Middle East Respiratory Syndrome Coronavirus (MERS-CoV) was first reported in Saudi Arabia in 2012. It has since caused illness in people from dozens of other countries. All cases to date have been linked to countries in or near the Arabian Peninsula. CDC continues to closely monitor MERS globally and work with partners to better understand the risks of this virus, including the source, how it spreads, and how infections might be prevented.
Middle East Respiratory Syndrome (MERS) is an illness caused by a virus (more specifically, a coronavirus) called Middle East Respiratory Syndrome Coronavirus (MERS-CoV). Most MERS patients developed severe respiratory illness with symptoms of shortness of breath, cough and fever. About 75% of patients reported with MERS have died. Cases of MERS are linked to the Arabian Peninsula. CDC is closely monitoring MERS worldwide as it has also been detected in Korea.
6. Human coronavirus SARS-CoV (beta coronavirus) that causes severe acute respiratory syndrome, or SARS) SARS-CoV Severe acute respiratory syndrome coronavirus (SARS-CoV) was first recognized in China in 2002. The virus spread worldwide (North America, South America, Europe, and Asia) with outbreaks in 2002-2003 with 8,098 probable cases including 774 deaths before it was contained.
7. Human coronavirus 2019 Novel (never seen before) Coronavirus (2019-nCoV) (beta coronavirus )is a virus (more specifically, a coronavirus) identified as the cause of an outbreak of respiratory illness first detected in Wuhan, China. In less than 3 months this virus has spread wider, (28 countries), infected more (31,500), and killed more (650) than the previous pandemic SARS. The original outbreak came from Wuhan, China. 2019-nCoV is a betacoronavirus, like MERS and SARs, all of which have their origins in bats. The sequences from U.S. patients are similar to the one that China initially posted, suggesting a likely single, recent emergence of this virus from an animal reservoir. The virus has made the gigantic mutation of now infecting human to human making it one of the most dangerous pandemic viruses.
Animal coronaviruses can rarely infect people and then spread between people as human to human infection, such as with MERS, SARS, but now we add the Wuhan 2019-nCoV virus to this formidable list.