No, “HIV insertions” were not identified in the 2019 coronavirus, contrary to claims based on questionable bioinformatics study

The claim is based on a study which compared extremely short gene and protein sequences between the 2019 novel coronavirus and HIV, a practice likely to give false positives. The study’s authors also overlooked checking for potential similarities between 2019-nCoV and other organisms. As it turned out, similar regions could also be found in many other organisms, not just HIV, meaning that these similarities are not unique to 2019-nCoV and HIV.

“15% fatality rate” from coronavirus (2019-nCoV) infection was based only on initial cases; infection fatality rate likely less than 3%

The 15% fatality rate from coronavirus (2019-nCoV) applied only to the initial cluster of 41 patients with confirmed infection and severe symptoms, as reported in The Lancet. Coronavirus infections can also produce mild symptoms, which likely went undetected. The mortality rate based on a group of more than 800 patients with laboratory-confirmed infection suggests that the fatality rate is closer to 3%.

No evidence budesonide, clarithromycin, and aspirin combination is “silver bullet” for COVID-19, contrary to Texas doctor’s claim

Randomized controlled trials are considered the gold standard when it comes to testing the safety and effectiveness of a medical treatment. Unlike anecdotes, randomized controlled trials contain several safeguards, such as experimental controls, blinding, and randomization, which help to reduce the risk of bias and improve the reliability of a trial’s findings.

Virologist Geert Vanden Bossche makes unsupported prediction that mass COVID-19 vaccination will cause an immune “collapse”

Immunity from either COVID-19 vaccination or from infection, exerts selective pressure on a virus and can drive viral evolution, potentially leading to new variants. However, not vaccinating and allowing the virus to spread freely carries the risk of severe disease and death and would also increase the virus’ opportunities to mutate. COVID-19 vaccines, while imperfect, help reduce the spread of the virus and the risk of severe illness and death.

Country-to-country comparison doesn’t show that COVID-19 vaccines are ineffective, contrary to Facebook post by journalist Sharyl Attkisson

When comparing country-level COVID-19 data, care must be taken when drawing conclusions because such analyses come with a high risk of bias. It is important to account for many factors, such as COVID-19 testing policy, each country’s age distribution, and compliance with COVID-19 preventive measures, because these are all factors that affect COVID-19 outcomes reported in each country.

Are claims linking recent U.S. trends in cancer diagnoses to COVID-19 vaccines plausible? A look at the available data

Claims questioning COVID-19 vaccine safety have circulated continuously since COVID-19 vaccination campaigns began at the end of 2020. One such claim suggests that there has been an unprecedented rise in the number of cancer cases after the COVID-19 vaccine rollout, implying that the vaccines are responsible for this phenomenon. Science Feedback previously explained why this … Continued