But what's now seen as the first true antibiotic would not be fully available to the general public till 1946.
The tentative truce struck in May brought that US tariff on Chinese products down to 30%, while Beijing slashed levies on US imports to 10% and promised to lift barriers on critical mineral exports.The agreement gave both sides a 90-day deadline to try to reach a trade deal.
But since then, talks have seemed to grind to a halt amid claims on both sides that the deal had been breached.The US has accused China of failing to restart shipments of critical minerals and rare earth magnets vital to car and computer industries.The Chinese Ministry of Commerce has denied the claims and accused the US of undermining the deal by introducing new restrictions on computer chips.
Trump introduced new export restrictions on semiconductor design software and announced it would revoke the visas of Chinese students.The US president said following the call that "there should no longer be any questions respecting the complexity of Rare Earth products".
He told reporters in the White House: "Chinese students can come, no problem, no problem - its an honour to have them frankly. But we want to check them."
Chinese state media reported that Xi warned Washington that it should handle Taiwan "with caution" to avoid conflict, just days after US Defence Secretary Pete Hegseth said China posed an "imminent" threat to the self-governed island.Sarwar will now be hoping for a similar boost ahead of the Scottish Parliament election.
On 6 June 1975, firefighter Norman Winnett was nearly six hours into a night shift when the call came in to say a train had crashed at Nuneaton railway station.He was first at the scene where an overnight sleeper train with 12 carriages had derailed, smashing into a platform and killing six people. Dozens more were injured.
"We could hear voices, we could hear people who wanted to get out," Mr Winnett remembered of the wreckage.The story of what happened is being retold by the BBC's Secret Warwickshire series.