1. What Is the Coronavirus and How Worried Should I Be About It?
1.1 Defining the Coronavirus
1.2 Signs and Symptoms of Coronavirus Infection
1.3 What to Do If You Think You Might Be Infected
1.4 What You Should Not Do
1.5 Confirmed Cases of 2019-nCoV Infections
1.6 Deaths Due to 2019-nCoV Infection
2. Can CBD Help Strengthen My Immunity to Infections?
3. In Conclusion
It's all over the news and social media, this virus outbreak that originated in China. As always, it's a bit difficult to separate the facts from hysteria—what with all the alarmist headlines and our collective love of drama.
A search online reveals many reports with conflicting data. If some of them are to be believed, we're on the brink of an apocalyptic epidemic, the horror and scale of which have only been evidenced in movies so far.
So, let's all calm down, take a deep breath (through the mask, if need be!), and look at the facts, as disseminated by the global health organizations that usually deal with epidemics and health crises: the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC).  
It's likely that an animal source from a live animal market in China was responsible for some of the first reported human infections. To protect yourself, when visiting live animal markets, avoid direct unprotected contact with live animals and surfaces in contact with animals. 
Is there any reason to panic? In short—most probably not. Obviously, the very frail, very young, and very old are all at a higher risk of contracting any disease than everyone else, as well as those with a compromised immune system.
The CDC reports that for confirmed 2019-nCoV infections, illnesses have ranged from people with little to no symptoms to people being severely ill and dying. 
They furthermore state that limited person-to-person spread has been reported outside of China. Most cases were associated with close contact with a confirmed 2019-nCoV patient.
They also advise the following in terms of evaluation and criteria for testing. It should be clear that the criteria for high-risk cases are very limited. 
It is also believed that the incubation period for the 2019-nCoV is similar to that of MERS. Symptoms may appear in as few as two days, or as long as 14 days after exposure to the virus.
If, based on the criteria above, you qualify as possibly infected, it's very important that you immediately contact your doctor or healthcare provider for medical attention. The CDC also gives the following guidelines:
If you are not high risk but still have some of these symptoms, most of the precautions still apply. Also, avoid all contact with confirmed 2019-nCoV cases.
Straight from the CDC website:
At the time of writing, cases of 2019-nCoV infection have been confirmed in 28 countries across the world. By February 5, 2020, only 11 positive cases were reported in the U.S. A total of 293 have been tested, and most were negative. This should give an indication of the low probability that your sniffles and cough are due to infection with this virus.
So far, the states where the positive cases have been diagnosed are: 
Thirty-six states have People under Investigation (PUI).
According to the New York Times, on February 7, 2020: 
The death toll and the number of infections continued to climb in China, according to official data released early Friday.
Nationwide, more than 70 new deaths and 3,100 new cases emerged in the previous 24 hours, the national health authorities said Friday morning.
The new figures brought the total number of deaths in China to at least 636. And the total number of confirmed cases rose to 31,161.
Sixty-nine of the newly reported deaths occurred in Hubei Province, the heart of the outbreak, the authorities said, but there were also four deaths outside of the province: one each in Jilin, Henan, Guangdong and Hainan Provinces.
So, it should be clear that unless you've visited China recently andas long as you're not in contact with infected people, you are at very low risk of contracting the virus. Sticking to the mentioned precautions and taking care of your health in general should be enough to keep this bug at bay.
Another good preventative measure is to increase your own immunity. Here, cannabidiol (CBD) could play a role.
There's no one-word answer to this question. As Mary Biles, writing for Project CBD, puts it—it's a complex balancing act. She's referring to the interplay between cannabis and the immune system, of course. 
Cannabis has been in use for medicinal purposes for thousands of years, but we still know relatively little about exactly how it works in the body. Tetrahydrocannabinol and cannabidiol (or THC and CBD), the best-researched constituents of Cannabis sativa L., have shown both immunosuppressant and immuno-stimulating activity.
Talking to Biles, Dr. Wai Liu, a London-based Research Fellow and cannabinoid Scientist, said:
I suspect that cannabinoids are having a double-punch effect of direct killing and enhancing immunity by suppressing those immune cells that serve to hold back the immune-based killing cells.
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Also talking to Project CBD, Dr. Mariano Garcia de Palau—a Spanish cannabis clinician and member of the Spanish Medical Cannabis Observatory—echoed Liu's opinion, adding:
I believe [cannabis] is immunosuppressive when there is hyper-immune response, but otherwise it regulates and corrects the immune system. In fact, you could say it functions like the endocannabinoid system, bringing equilibrium to the organism.
But that's not all. In one animal study, CBD exhibited antiviral properties that didn't affect its anti-inflammatory (in essence, immunosuppressant) effects. 
Administration of cannabidiol at dose of 5 mg/kg caused a significant decrease in total
leukocyte number and a significant fall in total numbers of T, B, and both T helper and T cytotoxic lymphocyte subsets.
This immunosuppressive effect did not affect the total numbers of NK and NKT cells that are responsible for the primary, nonspecific antiviral and antitumor immune response. In contrast, administration of cannabidiol at dose of 2.5 mg/kg increased the total and percentage NKT cells numbers, and the percentage number of NK cells. T
The results suggest that repeated treatment with cannabidiol inhibits specific immunity by reduction of T, B, T cytotoxic, and T helper cell numbers, and may enhance nonspecific antiviral and antitumor immune response related to NK and NKT cells.
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Another petri dish study suggested CBD's action against viral hepatitis C, but not hepatitis B. 
The main takeaways from all of the above are:
Do not attempt to self-medicate if you suspect you've contracted the latest coronavirus, however. CBD can be taken with most medications, as it has an excellent safety and side effect profile. Best would be to disclose any cannabis or CBD use to your prescribing doctor.
While epidemics anywhere in the world are alarming, most people are unlikely to contract the latest coronavirus, referred to as 2019-nCoV.
In the unlikely event of infection, you will be quarantined by your local health authorities, but it is still nothing to be alarmed about. Survival rates for this particular infection are much higher than its mortality rates. Also, with modern medical and epidemiological interventions, it is unlikely to take the proportions of the Black Plague.
That said—you won't lose anything by building your immune system with a healthy lifestyle and supplements like zinc and vitamin C. CBD can assist in this regard, but the cannabinoid's immune building properties are—at least scientifically speaking—still largely undetermined.
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