163

A qualified doctor challenging the Germ Theory of Disease after 1900? Wow. This is just a smattering - just a random tasting - of the thousands - or perhaps millions - of studies showing that contagious diseases are contagious. Dog to dog transmission of a novel influenza virus (H5N2) isolated from a canine To determine whether the novel H5N2 was ...


67

Edit (15/4/20): Biological and genetic analysis of the virus suggests that the virus evolved naturally, i.e. was not "made in a Chinese lab". However, as Lang Lang's answer notes, it is arguably premature to say whether the virus passed to humans directly from another animal species, or via a (presumably accidental) release of a specimen from the Wuhan ...


57

The claim -- based on this paper[1] -- is not wrong, it is talking about the most recent common ancestor. That is not to mean that the disease spontaneously "sprang into existence" at that point, just that older variants of the disease have died out -- or that the smallpox as we know it today is a result of a predecessor's mutation. Smallpox itself (as a ...


24

There is no perfect study yet, but the best evidence we have says HCQ doesn't work There are well-known rules for judging the quality of evidence in clinical studies. Since discussion this highly charged question seems to frequently consist of selective citation of studies producing the results some advocated of HCQ want to see, it is worth reviewing those ...


22

Claim There are many debunked claims about possible dangers of vaccines in this 4chan thread, including the old standby that vaccines cause autism, which is dealt with in this Skeptics Q&A. I will address the specific claim discussed in the OP. It has a few parts: Acute infections with wild type pathogens produce a Th1 response, but vaccines can only ...


21

The major symptoms of chronic mercury poisoning in children, according to the Centers for Disease Control: Tremors in extremities. Impaired motor control, manifesting as difficulty walking. Weakness. Speech impairment. Personality changes (described in the study as "characterized by irritability, excessive shyness, confidence loss, and nervousness"...


19

A quick Google search found a list of similar cases: Tipton, M. J., & Golden, F. S. C. (2011). A proposed decision-making guide for the search, rescue and resuscitation of submersion (head under) victims based on expert opinion. Resuscitation, 82(7), 819–824. doi:10.1016/j.resuscitation.2011.02.021 This was published in 2011, so it seems implausible ...


18

Q Is there evidence to support this [ all the available strains of the virus having an ancestor no older than 1580]? Yes. What we think of when we say "smallpox" is a disease that did not exist in this form before and seems to be of quite recent origin. That disease is tied to a causative agent called virus that in this variant did not come into existence ...


15

No, there is no evidence to support this claim, because she is claiming to have cured a cancer that was never diagnosed. Via Dr David Goski's Respectful Insolence blog: For example, Ann Cameron claims to have cured herself of stage IV colon cancer with carrot juice. She had stage III colon cancer, underwent surgery, and refused chemotherapy. Later, she ...


14

Yes, the Skripals were attacked by use of Novichok The UK found that was the case and the Organisation for the Prohibition of Chemical Weapons (OPCW) agreed. OCPW press release: THE HAGUE, Netherlands—4 September 2018— The Organisation for the Prohibition of Chemical Weapons (OPCW) transmitted today to the United Kingdom of Great Britain and ...


12

More research has been conducted on the topic since 2011, and the answer should now be revised from yes, to requires more evidence. From The Skeptic's Guide to Sports Science: Confronting Myths of the Health and Fitness Industry by Nicholas B. Tiller (Routledge; April 15, 2020): The most recent studies in this domain bring into question the purported ...


12

USA Today: COVID-19 treatment: FDA says hydroxychloroquine touted by Trump is not safe or effective The Food and Drug Administration is warning against the use of two drugs President Donald Trump has repeatedly touted as a possible "game changer" in the fight against the coronavirus. The Drug Safety Communication published Friday said the ...


11

A double-blind, randomized, controlled trial was just published today in NEJM: A Randomized Trial of Hydroxychloroquine as Postexposure Prophylaxis for Covid-19. This is a trial where Hydroxychloroquine was given very early, just as Risch demands in the article you quote. The results were negative: After high-risk or moderate-risk exposure to Covid-19, ...


10

In most studies, caffeine intake was associated with no significant weight change or a slight weight loss. Caffeine - no weight change 1) Caffeinated Coffee Does Not Acutely Affect Energy Intake, Appetite, or Inflammation but Prevents Serum Cortisol Concentrations from Falling in Healthy Men (The Journal of Nutrition, 2011) Sixteen apparently healthy, ...


10

It is too early to tell. We do not know its origin. We have neither any evidence for nor anything against this claim. 1. First of all: While the question 'as is' misrepresents the origin of the claim: The Washington Times article just says this: Coronavirus may have originated in lab linked to China's biowarfare program That does not say 'the lab made this'...


9

So, the actual claim here (the OP's) is that Novichok doesn't cause muscle stiffness/rigidity. I think there are not much in the way of experiments with Novichok itself, but if we assume (following Wikipedia) that it's of the organophosphate family, such poisonings with more commonly available compounds have displayed various symptoms including both ...


9

There was a good article on face masks on SSC way back in March, which reviewed pre-existing evidence on face masks. I think a large reason the issue became contentious is the way that officials treated face masks as unnecessary in the beginning and then changed their minds later. I'm not sure why this happened, but one important issue may be, as described ...


8

Gluten-free diet and depression in individuals with NON-CELIAC GLUTEN SENSITIVITY Non-celiac gluten sensitivity refers to intestinal and other symptoms related to the ingestion of gluten in the absence of celiac disease and wheat allergy. The article from the question mentions few studies in which gluten-free diet was associated with less depression in ...


8

The claims, like "meat, dairy, and eggs trigger an inflammatory reaction inside the body" arise from the studies in which they observed increased blood levels of "inflammatory markers," like C-reactive protein (CRP), in individuals on different diets. For example, in one study Dietary Red and Processed Meat Intake and Markers of Adiposity and Inflammation (J ...


8

I decided to go and look on the website for the research institute in Seattle and they confirm that testing is indeed underway. On March 16, 2020, Kaiser Permanente Washington Health Research Institute (KPWHRI) gave the first-ever injection of an investigational vaccine for the 2019 novel coronavirus, SARS-CoV-2, to 4 volunteers participating in a phase I ...


7

Diet soda refers to a calorie-free carbonated beverage sweetened by artificial sweeteners. The current evidence does not provide a proof that diet soda causes weight gain, but the main points are: Overweight individuals may drink diet soda to prevent further weight gain, but they still gain weight because they do not decrease calorie intake from foods, ...


7

It's an effect that's been widely described and studied. A meta-study says: Prolonged survival under water Generally, drowning results in cardiopulmonary arrest within 2 min (Fainer et al. 1951). Quan et al. (2014) reported on the outcome of 1094 open water drownings; most (78%) had bad outcomes (74% death, 4% severe neurological sequelae), and of the good ...


7

Yes. They can. And many if not most or the vast majority will. Technically and practically they are not very suitable to begin with. That is yes for many brands out there and yes for many possible applications if a homemade mask is made out of them. Because there are so many possible combinations out there, finding one such bag is difficult if that bag ...


6

What the statement "the evolution of smallpox virus occurred far more recently than previously thought" means is not that it evolved into existence, what it means is that it evolved at all. Today's smallpox strains are not all the same. 1580 was when they diverged from each other. Before 1580, there were other strains too but none of them except the direct ...


6

In recipes, "table salt", "sea salt", and "koshering salt" often refer to different sized and shaped crystals. There is no question that when sprinkled on food they have different tastes, but that is due to the size and texture. Once dissolved there is no detectable difference. It is possible to buy iodized fine-ground sea salt that is certified kosher. ...


6

An up-to-date analysis has been requested. I agree that it's desirable to integrate the study "Electromagnetic Hypersensitivity: Evidence for a Novel Neurological Syndrome" (McCarty et al. 2011) into a larger analysis. Another team, Rubin et al. were unable to replicate this study and complained to the journal about McCarty's poor controls, which ...


6

Many websites propose cleansing the gallbladder (or the liver) in specific ways (frequently with fruit juice and oil) which they claim causes the gallbladder to expel cholesterol in the form of small balls. These claims are false. A study published in The Lancet found that the supposed "gallstones" are formed almost entirely of fatty acids (i.e. a substance ...


6

Wikipedia has a good article on crystal healing, stating that it is a pseudoscientific alternative medicine technique that uses semiprecious stones and crystals[...] Adherents of the technique claim that these have healing powers, although there is no scientific basis for this claim. The article also mentions In 2001 Christopher French, head of ...


6

Out of the numerous 2013 mass media stories on this, Reuters managed to correctly report that this was an unpublished study! Rouillon told Reuters that his unpublished work is still in the early stages and he is hesitant about giving one-size-fits-all advice to women, despite the media circus. Also, Rouillon JD doesn't return any hits in pubmed after ...


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