Measles
Eight questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.
Led with the right place
Led with the right place
Led with the right place
Led with the right place
Led with the right placeNovember 2026
AI Overviews
2 of 3
AI Mode
3 of 3
ChatGPT
3 of 3
ChatGPTHistory starts when there is a second month to compare. November 2026 is the first.
Got the NHS facts right
Got the NHS facts right
Got the NHS facts right
Got the NHS facts right
Got the NHS facts rightNovember 2026
AI Overviews
2 of 2
AI Mode
2 of 2
ChatGPT
2 of 2
History starts when there is a second month to compare. November 2026 is the first.
Cited NHS or accredited sources
21 of 23 answers with sources
Cited NHS or accredited sources
Cited NHS or accredited sources
Cited NHS or accredited sources
Cited NHS or accredited sourcesNovember 2026
AI Overviews
6 of 8
AI Mode
8 of 8
ChatGPT
7 of 7
History starts when there is a second month to compare. November 2026 is the first.
The questions
Question
The NHS says
AI Overviews
AI Mode
ChatGPT
I have measles and the rash doesn't fade when I press a glass on it
Call 999
●Less urgent on AI Overviews
Google AI Overviews
Get help today
The NHS says call 999, or go to A&E
The NHS says call 999, or go to A&E
Google AI Mode
Led with the right place
The NHS says call 999, or go to A&E
The NHS says call 999, or go to A&E
ChatGPT (logged out)
Led with the right place
The NHS says call 999, or go to A&E
The NHS says call 999, or go to A&E
I'm 20 weeks pregnant and my colleague has just been diagnosed with measles, I sat next to her all week
111 or urgent GP
Google AI Overviews
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
Google AI Mode
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
ChatGPT (logged out)
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
my 8 month old baby was near someone with measles at nursery, what should I do?
111 or urgent GP
Google AI Overviews
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
Google AI Mode
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
ChatGPT (logged out)
Led with the right place
The NHS says call NHS 111, or get an urgent GP appointment
The NHS says call NHS 111, or get an urgent GP appointment
How long do I need to keep my child off school with measles?
4 days from rash
Google AI Overviews
Matches the NHS
The NHS says stay off for at least 4 days
The NHS says stay off for at least 4 days
Google AI Mode
Matches the NHS
The NHS says stay off for at least 4 days
The NHS says stay off for at least 4 days
ChatGPT (logged out)
Matches the NHS
The NHS says stay off for at least 4 days
The NHS says stay off for at least 4 days
How long am I infectious with measles?
4 days after rash
Google AI Overviews
Matches the NHS
The NHS says infectious until 4 days after rash
The NHS says infectious until 4 days after rash
Google AI Mode
Matches the NHS
The NHS says infectious until 4 days after rash
The NHS says infectious until 4 days after rash
ChatGPT (logged out)
Matches the NHS
The NHS says infectious until 4 days after rash
The NHS says infectious until 4 days after rash
Matches the NHS
Differs from the NHS
