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Scientists tried to give people COVID — and failed
Nature

Researchers deliberately infect participants with SARS-CoV-2 in ‘challenge’ trials — but high levels of immunity complicate efforts to test vaccines and treatments.

On 30 April, AstraZeneca conceded the vaccine, sold under the name Vaxzevria, can cause fatal blood clots and low platelet counts, also known as thrombosis with thrombocytopenia syndrome, or TTS.

The admission came through court documents in a UK class action lawsuit which sought £100 million ($190 million) in compensation for almost 50 victims of AstraZeneca vaccine side effects.

Pentagon ran secret anti-vax campaign to undermine China during pandemic
Reuters

At the height of the COVID-19 pandemic, the U.S. military launched a secret campaign to counter what it perceived as China’s growing influence in the Philippines, a nation hit especially hard by the deadly virus.

The clandestine operation has not been previously reported. It aimed to sow doubt about the safety and efficacy of vaccines and other life-saving aid that was being supplied by China, a Reuters investigation found. Through phony internet accounts meant to impersonate Filipinos, the military’s propaganda efforts morphed into an anti-vax campaign. Social media posts decried the quality of face masks, test kits and the first vaccine that would become available in the Philippines – China’s Sinovac inoculation.

Livestock virus hits Europe with a vengeance
Science.org

Bluetongue spreads rapidly in sheep and cattle in six countries despite the use of three new vaccines

Poliovirus that infected a Chinese child in 2014 may have leaked from a lab
Science.org

Researchers at the Pasteur Institute in Paris working under strict biosafety conditions recently opened an old box that contained a virological time capsule: four poliovirus samples, each with a handwritten label on the vial, sent to the institute more than 60 years earlier by Albert Sabin, a giant in the field of poliovirus research.

The viruses had to be destroyed, as part of a global campaign to get rid of old poliovirus samples. But first, the Pasteur team would sequence them to preserve their genetic information.

Now, a paper about those sequences, published in Virus Evolution in July, has raised an unexpected and troubling possibility: A poliovirus that infected a 4-year-old child in China in 2014 may have originated in a research laboratory or a vaccine production facility.

The exact source of that virus is unclear, as is the route by which it infected the child, and the authors are careful not to point fingers. But the paper underscores the fact that accidental releases of poliovirus are remarkably common.