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Consumer Discretionary : Hotels, Restaurants & Leisure | Small Cap Value
Company profile

Cedar Fair, L.P. is an operator of regional amusement parks. The Company operates within a segment of amusement/water parks with accompanying resort facilities. As of December 31, 2016, the Company owned approximately 11 amusement parks, two separately gated outdoor water parks, one indoor water park and five hotels. The amusement parks include Cedar Point, located on Lake Erie between Cleveland and Toledo in Sandusky, Ohio; Knott's Berry Farm, near Los Angeles, California; Canada's Wonderland, near Toronto, Canada; Kings Island, near Cincinnati, Ohio; Carowinds, in Charlotte, North Carolina; Dorney Park & Wildwater Kingdom (Dorney Park), in Allentown, Pennsylvania; Kings Dominion, near Richmond, Virginia; California's Great America, in Santa Clara, California; Valleyfair, near Minneapolis/St. Paul, Minnesota; Worlds of Fun, in Kansas City, Missouri, and Michigan's Adventure, in Muskegon, Michigan. It manages and operates Gilroy Gardens Family Theme Park in Gilroy, California.

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UPDATE: Here's the latest on what we know works -- and doesn't work -- in treating coronavirus infections

12:22 pm ET July 4, 2020 (MarketWatch)

By William Petri

Steroids and Remdesivir have already been shown to help. It's too early to judge on a couple of other possibilities.

I am a physician and a scientist (https://uvahealth.com/findadoctor/profile/william-petri) at the University of Virginia. I care for patients and conduct research to find better ways to diagnose and treat infectious diseases, including COVID-19. Here I'm sharing what is known about which treatments work, and which don't, for the new coronavirus infection.

Keep in mind that this field of medicine is rapidly evolving as our understanding of the SARS-CoV-2 virus improves. So what I am writing today may change within days or weeks.

Below are the treatments that have been tried and for which we have the best knowledge.

Hydroxychloroquine or chloroquine -- no evidence they work

There are three randomized controlled trials (http://doi.org/10.1126/science.abd2496) of hydroxychloroquine, all of which have failed to prove or disprove a beneficial or harmful effect on COVID-19 clinical course or clearance of virus. Given this current lack of evidence, these drugs, which normally are used to treat arthritis, should only be used within the context of a controlled clinical trial (https://www.idsociety.org/practice-guideline/covid-19-guideline-treatment-and-management/#toc-5).

Lopinavir/ritonavir -- not helpful

The drug Lopinavir is an inhibitor of an enzyme called HIV protease which is involved in the production of viral particles. Protease inhibitors for HIV were revolutionary, leading to our current ability to effectively treat HIV. Lopinavir also can inhibit enzymes that perform similar functions as the HIV protease in the SARS and MERS coronaviruses (https://www.niaid.nih.gov/diseases-conditions/covid-19). Ritonavir increases the level of Lopinavir in the blood so the lopinavir/ritonavir combination was tested in a randomized controlled clinical trial for COVID-19.

Unfortunately, there was no impact on the levels of virus in the throat or duration of viral shedding, nor did patients' clinical course or survival change. There therefore is no role for lopinavir/ritonavir in the treatment of COVID-19 (http://doi.org/10.1056/NEJMoa2001282).

Steroids -- yes for almost all COVID-19 patients

When a synthetic steroid hormone, called dexamethasone, was given to patients with COVID-19 the drug decreased 28-day mortality by 17% and hastened hospital discharge (https://www.medrxiv.org/content/10.1101/2020.06.22.20137273v1).

This work was performed in a randomized and controlled clinical trial (http://www.ox.ac.uk/news/2020-06-16-low-cost-dexamethasone-reduces-death-one-third-hospitalised-patients-severe) of over 6,000 patients, and while not replicated in another study or yet peer reviewed, is certainly enough evidence to recommend its use.

Tocilizumab -- too early to judge

Tocilizumab is an antibody (https://theconversation.com/antibody-injections-could-fight-covid-19-infections-an-infectious-disease-expert-explains-the-prospects-139444) that blocks a protein, called IL-6 receptor, from binding IL-6 and triggering inflammation. Levels of IL-6 are higher in many patients with COVID-19, and the immune system in general seems to be hyperactivated in those with the most severe disease. This leads many physicians and physicians to think that inhibiting the IL-6 receptor might protect patients from severe disease.

Tocilizumab is currently FDA-approved for the treatment of rheumatoid arthritis and several other collagen-vascular diseases and for "cytokine storm (https://theconversation.com/blocking-the-deadly-cytokine-storm-is-a-vital-weapon-for-treating-covid-19-137690)" -- a harmful overreaction of the immune system -- that can be caused by certain types of cancer therapy and COVID-19.

A retrospective observational study (https://doi.org/10.1016/S2665-9913(20)30173-9) found that COVID-19 patients treated with tocilizumab had a lower risk of mechanical ventilation and death. But we lack a randomized controlled clinical trial so there is no way to ascertain if this apparent improvement was due to tocilizumab or from the imprecise nature of retrospective studies.

Convalescent plasma -- too early to judge

Convalescent plasma, the liquid derived from blood after removing the white and red blood cells, contains antibodies from previous infections that the plasma donor had. This plasma has been used to prevent infectious diseases including pneumonia, tetanus, diphtheria, mumps and chickenpox for over a century. It is thought to benefit patients because antibodies from the plasma of survivors bind to and inactivate pathogens or their toxins of patients. Convalescent plasma has now been used in thousands of COVID-19 patients.

However, the only randomized clinical trial was small and included just 103 patients who received convalescent plasma 14 days after they became ill. There was no difference in the time to clinical improvement or mortality (https://jamanetwork.com/journals/jama/article-abstract/2766943) between those who did and did not receive treatment. The encouraging news was that there was a significant decrease in virus levels detected by PCR.

It is therefore too early to tell if this will be beneficial and controlled clinical trials are needed.

Remdesivir -- yes, decreases hospital stay

Remdesivir, made by Gilead Sciences(GILD), is a drug that inhibits the coronavirus enzyme (https://theconversation.com/remdesivir-explained-what-makes-this-drug-work-against-viruses-137751) that makes copies of the viral RNA genome. It acts by causing premature stoppage or termination of the copying and ultimately blocks the virus from replicating.

Remdesivir treatment, especially for patients who required supplemental oxygen before they were placed on a ventilator reduced mortality and shortened the average recovery time (http://doi.org/10.1056/NEJMoa2007764) from 15 to 11 days.

Read:U.S. government to secure majority of Gilead's remdesivir supply through September (http://www.marketwatch.com/story/hhs-500000-courses-of-gilead-sciences-remdesivir-to-be-available-for-sale-2020-06-29)

ACE inhibitors and ARBs -- keep taking them

There was a concern that drugs called ACE inhibitors (https://www.webmd.com/heart-disease/guide/medicine-ace-inhibitors#:%7E:text=Angiotensin%2Dconverting%20enzyme%20(ACE),to%20lower%20your%20heart's%20workload.) or angiotensin receptor blockers (ARBs), which are used to treat high blood pressure and heart failure, could increase levels of the ACE2 proteins, the receptor for SARS-CoV-2 (https://theconversation.com/what-is-the-ace2-receptor-how-is-it-connected-to-coronavirus-and-why-might-it-be-key-to-treating-covid-19-the-experts-explain-136928), on the surface of cells in the body. This would, physicians hypothesized, allow more entry points for the virus to infect cells and would therefore boost the severity of new coronavirus infections.

However, there is no evidence that this is the case. The American Heart Association, the Heart Failure Society of America and the American College of Cardiology all recommend that patients continue to take these medications during the pandemic as they are beneficial in the treatment of high blood pressure and heart failure (https://www.acc.org/latest-in-cardiology/articles/2020/03/17/08/59/hfsa-acc-aha-statement-addresses-concerns-re-using-raas-antagonists-in-covid-19).

We have made amazing progress in the treatment of COVID-19. Two therapies -- steroids and Remdesivir -- have already been shown to help. Those who benefit from these treatments owe thanks to patients who volunteered to participate in controlled clinical trials, and the physicians and pharmaceutical companies that lead them.

William Petri is a professor of medicine at the University of Virginia in Charlottesville. This was first published by The Conversation (https://theconversation.com/) -- "Which drugs and therapies are proven to work, and which ones don't, for COVID-19? (https://theconversation.com/which-drugs-and-therapies-are-proven-to-work-and-which-ones-dont-for-covid-19-141513)"

-William Petri; 415-439-6400; AskNewswires@dowjones.com


RELATED: Watch out for these 3 new coronavirus symptoms (http://www.marketwatch.com/story/watch-out-for-these-six-new-coronavirus-symptoms-2020-04-27)

RELATED: 19 California counties, New Jersey and New York City paused indoor dining -- why is it so dangerous? (http://www.marketwatch.com/story/new-jersey-postponed-indoor-dining-as-new-york-makes-decision-on-wednesday-why-is-it-so-dangerous-2020-07-01)

RELATED: Fauci says Americans must do 3 things to win the battle against COVID-19 (http://www.marketwatch.com/story/fauci-has-harsh-words-for-the-american-public-and-lawmakers-as-covid-19-surges-in-florida-california-and-texas-2020-06-30)

(END) Dow Jones Newswires

July 04, 2020 12:22 ET (16:22 GMT)

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