Q: Is one day isolation sufficient to stop forward transmission of COVID-19?
A: People with COVID-19 could potentially transmit it to others well beyond a day after developing symptoms or testing positive. New guidance from the CDC advises people to isolate until they have been fever-free and with symptoms improving for at least 24 hours, and then take precautions for five days, which covers the period when “most people are still infectious.”
Long COVID is a collection of health problems caused by COVID-19 that remain or appear following the initial infection. It is implausible that face masks cause long COVID, contrary to claims made online. Mask use can temporarily cause discomfort, but physiological effects are not biologically meaningful.
People online are touting the results of a Cochrane review to incorrectly claim that it shows masks “don’t work” against the coronavirus. But the primary conclusion of the review is that it’s uncertain from randomized controlled trials whether mask interventions in the community help slow the spread of respiratory illnesses.
Plenty of peer-reviewed studies have found government restrictions early in the pandemic, such as business closures and physical distancing measures, reduced COVID-19 cases and/or mortality, compared with what would have happened without those measures. But conservative news outlets and commentators have seized on a much-criticized, unpublished working paper that concluded “lockdowns” had only a small impact on mortality as definitive evidence the restrictions don’t work.
Justice Sonia Sotomayor, who as a diabetic is at higher risk for severe illness from COVID-19, has participated remotely in recent Supreme Court arguments. But Ted Nugent posted a bogus headline on Facebook — using a CNBC logo and byline — with the unfounded claim that Sotomayor tested positive for the disease. A CNBC spokesperson said the outlet didn’t publish it.
An increase in pandemic restrictions in Germany sparked a protest at a market, where a man dressed as Santa Claus was briefly detained. Online posts falsely claimed he was arrested for not wearing a mask. But police said he was detained for participating in an unregistered protest.
Florida’s total COVID-19 case rate is higher than the national rate and 10th highest in the U.S. But social media posts and the state’s governor point to a recent decline in daily cases as evidence of Florida’s success in handling COVID-19, while ignoring the full impact of the pandemic’s toll on the state.
Afghanistan has implemented a COVID-19 vaccination program and, although administration of vaccines has slowed due to internal armed conflicts, the program is still underway. But some prominent conservative purveyors of misinformation in the U.S. have made false claims about vaccination efforts and the impact of the pandemic in Afghanistan.
The delta variant of the coronavirus that causes COVID-19 is more transmissible than previous forms of the virus, and has helped spur an increase in cases, including in children. But a chiropractor in a Facebook video wrongly claims that “it is not showing more of a problem.” That’s one of several misleading and false claims he makes about COVID-19.
A growing body of evidence supports the use of masks to slow the spread of COVID-19. But the effectiveness of masks is now being challenged again. Here we summarize some of our work over the past 16 months, based on categories of misinformation about masking.