Infections (general)
17 questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.
Got the NHS facts right
41 of 45 answers
Got the NHS facts right
12 of 15 answers
Got the NHS facts right
14 of 15 answers
Got the NHS facts right
15 of 15 answers
Got the NHS facts rightNovember 2026
AI Overviews
12 of 15
AI Mode
14 of 15
ChatGPT
15 of 15
History starts when there is a second month to compare. November 2026 is the first.
Cited NHS or accredited sources
34 of 46 answers with sources
Cited NHS or accredited sources
10 of 17 answers with sources
Cited NHS or accredited sources
14 of 17 answers with sources
Cited NHS or accredited sources
10 of 12 answers with sources
Cited NHS or accredited sourcesNovember 2026
AI Overviews
10 of 17
AI Mode
14 of 17
ChatGPT
10 of 12
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
Can I have the pneumococcal vaccine if I'm pregnant?
Yes, even pregnant
Google AI Overviews
Unconfirmed
Google AI Mode
Matches the NHS
The NHS says most people can have it
The NHS says most people can have it
ChatGPT (logged out)
Matches the NHS
The NHS says most people can have it
The NHS says most people can have it
Can the hepatitis B vaccine give you hepatitis B?
No, killed virus
Google AI Overviews
Matches the NHS
The NHS says hepatitis B vaccine cannot infect
The NHS says hepatitis B vaccine cannot infect
Google AI Mode
Matches the NHS
The NHS says hepatitis B vaccine cannot infect
The NHS says hepatitis B vaccine cannot infect
ChatGPT (logged out)
Matches the NHS
The NHS says hepatitis B vaccine cannot infect
The NHS says hepatitis B vaccine cannot infect
Can my baby have their vaccinations if they have a cold?
Minor illness does not stop vaccinations
Google AI Overviews
Matches the NHS
The NHS says minor illness does not stop vaccinations
The NHS says minor illness does not stop vaccinations
Google AI Mode
Matches the NHS
The NHS says minor illness does not stop vaccinations
The NHS says minor illness does not stop vaccinations
ChatGPT (logged out)
Matches the NHS
The NHS says minor illness does not stop vaccinations
The NHS says minor illness does not stop vaccinations
How long before starting university should I get the MenACWY vaccine?
2 weeks before
Google AI Overviews
Matches the NHS
The NHS says at least 2 weeks before college
The NHS says at least 2 weeks before college
Google AI Mode
Matches the NHS
The NHS says at least 2 weeks before college
The NHS says at least 2 weeks before college
ChatGPT (logged out)
Matches the NHS
The NHS says at least 2 weeks before college
The NHS says at least 2 weeks before college
How many RSV vaccine doses do older adults need?
1 dose
●Didn’t say on AI Overviews
Google AI Overviews
Does not say
The NHS says older adults need 1 dose
The NHS says older adults need 1 dose
Google AI Mode
Matches the NHS
The NHS says older adults need 1 dose
The NHS says older adults need 1 dose
ChatGPT (logged out)
Matches the NHS
The NHS says older adults need 1 dose
The NHS says older adults need 1 dose
My baby missed the first rotavirus vaccine, is it too late at 14 weeks?
Up to 15 weeks
Google AI Overviews
Unconfirmed
Google AI Mode
Matches the NHS
The NHS says up to 15 weeks oldEngland
The NHS says up to 15 weeks oldEngland
ChatGPT (logged out)
Matches the NHS
The NHS says up to 15 weeks oldEngland
The NHS says up to 15 weeks oldEngland
Should premature babies wait to have their vaccinations?
From 8 weeks old
Google AI Overviews
Matches the NHS
The NHS says vaccines from 8 weeks old
The NHS says vaccines from 8 weeks old
Google AI Mode
Matches the NHS
The NHS says vaccines from 8 weeks old
The NHS says vaccines from 8 weeks old
ChatGPT (logged out)
Matches the NHS
The NHS says vaccines from 8 weeks old
The NHS says vaccines from 8 weeks old
How many doses of the mpox vaccine do I need and how far apart?
28 days apart
Google AI Overviews
Matches the NHS
The NHS says 2 doses at least 28 days apart
The NHS says 2 doses at least 28 days apart
●Didn’t say on AI Mode
Google AI Mode
Does not say
The NHS says 2 doses at least 28 days apart
The NHS says 2 doses at least 28 days apart
ChatGPT (logged out)
Matches the NHS
The NHS says 2 doses at least 28 days apart
The NHS says 2 doses at least 28 days apart
Where do babies get their injections at vaccination appointments, arm or thigh?
Thigh
Google AI Overviews
Matches the NHS
The NHS says injections in the thigh
The NHS says injections in the thigh
Google AI Mode
Matches the NHS
The NHS says injections in the thigh
The NHS says injections in the thigh
ChatGPT (logged out)
Matches the NHS
The NHS says injections in the thigh
The NHS says injections in the thigh
Can I have the mpox vaccine if I'm pregnant?
Yes, if pregnant
Google AI Overviews
Matches the NHS
The NHS says can have if pregnant
The NHS says can have if pregnant
Google AI Mode
Matches the NHS
The NHS says can have if pregnant
The NHS says can have if pregnant
ChatGPT (logged out)
Matches the NHS
The NHS says can have if pregnant
The NHS says can have if pregnant
I'm 22 and missed the MenACWY jab at school. Can I still get it?
Up to age 25
Google AI Overviews
Matches the NHS
The NHS says up to age 25
The NHS says up to age 25
Google AI Mode
Matches the NHS
The NHS says up to age 25
The NHS says up to age 25
ChatGPT (logged out)
Matches the NHS
The NHS says up to age 25
The NHS says up to age 25
Does the rotavirus vaccine protect against norovirus and other tummy bugs?
Does not protect against other illnesses
Google AI Overviews
Matches the NHS
The NHS says does not protect against other illnesses
The NHS says does not protect against other illnesses
Google AI Mode
Matches the NHS
The NHS says does not protect against other illnesses
The NHS says does not protect against other illnesses
ChatGPT (logged out)
Matches the NHS
The NHS says does not protect against other illnesses
The NHS says does not protect against other illnesses
Is it okay to drink alcohol while taking doxycycline?
Avoid alcohol
Google AI Overviews
Matches the NHS
The NHS says avoid alcohol with doxycycline
The NHS says avoid alcohol with doxycycline
Google AI Mode
Matches the NHS
The NHS says avoid alcohol with doxycycline
The NHS says avoid alcohol with doxycycline
ChatGPT (logged out)
Matches the NHS
The NHS says avoid alcohol with doxycycline
The NHS says avoid alcohol with doxycycline
Can I take nitrofurantoin while pregnant at 20 weeks?
Before week 28
Google AI Overviews
Matches the NHS
The NHS says usually safe before week 28
The NHS says usually safe before week 28
Google AI Mode
Matches the NHS
The NHS says usually safe before week 28
The NHS says usually safe before week 28
ChatGPT (logged out)
Matches the NHS
The NHS says usually safe before week 28
The NHS says usually safe before week 28
Matches the NHS
Unconfirmed