For misinfo to thrive "there is always that gap of knowledge," she says.
@MelanieFSmith@Graphika_NYC There was plenty of chatter around the question of periods in groups and message boards. But one Facebook group turned out to be particularly influential. It was frequented by anti-vaccine activists who quickly picked up on the idea and ran with it...
@FoodieScience Evolutionary biologist Michael Worobey, who's studied the origins of the 1918 flu and the beginning of the HIV/AIDS epidemic in America. He initially signed the letter because he hadn't seen anything that differentiated whether it came from the markets or the lab.
@FoodieScience But two things have swayed him that the market is (again) the most likely origin.
1. Initial cases clearly radiate out away from the markets, not the lab.
2. A newly published paper shows numerous live animals were being sold in the market...
Short 🧵: Data from the Chinese National Nuclear Safety Administration does seem to indicate a *slightly* elevated level of gamma radiation around the Taishan Nuclear Power Plant. These are the two monitoring stations closest (one on the left is at the plant).
A lot of people are tweeting about how this new Pfizer vaccine finding has not been peer-reviewed. That's true, but it's also important to understand that academic peer-review is not the only way to be scientifically rigorous... 🧵
In the case of clinical trials, there are a number of methods to keep bias out of data. One is to "blind" the trial, so that both patients and those administering the vaccine don't know who gets the drug and who gets the placebo. This trial was fully blinded.
In other words, patients, scientists, clinicians, and even Pfizer executives had no idea who got the vaccine and who didn't. Only a small team of statisticians and medical monitors remained unblinded to keep the trial on track. They had no direct contact with the trial team.
First off, if you're in need of big picture view, check out this story featuring @brianweeden and @planet4589, which gives a nice summary of where things stand (an audio version also be on @npratc tonight!).
First, the theory: It's known as "herd immunity". If enough people catch COVID-19 and recover, and if they are immune, then the entire population will be protected. Estimates vary widely, but somewhere between 50%-80% of a given pop would need to catch COVID for this to work.
Herd immunity is real, but historically only discussed in terms of vaccination campaigns.
For example, if 95% of a population is vaccinated against measles (very contagious) then a single case cannot spread into the community.
Wow. Wow. Wow. Reading through the criminal complaint against nanotechnology researcher Charles Lieber at Harvard (courtsey of @relucasz). This is nuts.
Lieber was offered $50,000 a month and $150K+ for collaborating with Wuhan University of Technology.
@relucasz The FBI alleges that this was part of China's Thousand Talents Program, to recruit Western researchers and steal intellectual property.
Lieber was offered cash (and apparently accepted).
@relucasz Wuhan University established the WUT-Harvard Joint Nano Key Laboratory based on the agreement with Lieber... But HARVARD never knew anything about it. When they found out about it in 2015, Lieber denied everything.
@nktpnd@mhanham To recap, earlier today, President Trump tweeted a REALLY clear picture of an accident at Iran's space launch facility. The picture is far better quality than what the best commercial satellites (like those operated by @Maxar) can produce. See for yourself.
. @ctbto_alerts confirms that 4 IMS stations are offline in Russia.
RUP61; Dubna: the last message received in the International Data Centre (IDC) was 2019/08/10 03:16:59 (IDC received time UTC)
RUP54; Kirov: the last message received in IDC was 2019/08/10 06:19:31 UTC
@ctbto_alerts The other two stations went offline on August 13th.
@ctbto_alerts All four outages came just days after an accident that may have involved the nuclear-powered SSC-X-9 Skyfall missile. Five ROSATOM employees were confirmed dead in that incident. It happened on August 8. The stations are CTBTO funded, but operated by local Russian institutions.
GUYS! I'm going to watch the entire W76-1 LEP celebration from Pantex yesterday and tweet about it in this thread...
First thing I learned: "Pantexan" is a word.
First up, NNSA director Lisa Gordon-Hagerty: W76-1 LEP started in October 1998, with first production unit in Sep of '08. Last unit produced in Dec 2018. So ~20 years end-to-end...
LGH: W76-1 required "significant modifications" to the warhead. The 76-1 extends warhead life by 20+ years. It incorporates nuclear surety enhancements and minimizes certification risks in the absence of testing.