AI chatbots often give unsafe health advice, warns a global study.
Explaining how RT-PCR tests may yield a false negative results, the scientists said, when a swab misses collecting cells infected with the virus, or if virus levels are very low early during the infection, some tests can produce negative results.
© 2026 Rediff.com - Advertise with us - Disclaimer - Privacy Policy - Sitemap - Feedback - About us - Terms of use - Grievances