Flu season arrives early
The 2026-27 flu season has started about a month early, the CDC reports. In its FluView report for the week ending October 24, the agency said activity 'remains low nationally' but is 'higher than typically observed at this time of year.' The H1N1 strain is doing almost all the damage, accounting for 98.9 percent of subtyped viruses. The CDC's positivity rate was 3.6 percent in early October, six times the 0.6 percent of a year earlier. This season's vaccines were updated to match the circulating strains, including H1N1, and the CDC still recommends an annual flu shot for most people six months and older.
An AI that hunts software flaws — 948 of them
Innovation of the week. OpenAI announced GPT-6 Cyber on Thursday, a model built to help security researchers find software vulnerabilities, develop working exploits and write fixes. In a mid-October test run, an automated pipeline using the model examined 2,308 candidate flaws in the Linux kernel, reproduced 1,724 of them and produced 948 working exploits that gain administrator access — all for about $1.2 million in computing costs. The point, OpenAI says, is defense: find the holes before the attackers do. The same capability in the wrong hands is the obvious worry, which is why the model itself is unreleased.