many using same water bottle- is there scientific backup for such ?

in the school, there seems some controvery.. some teachers don't mind multiple students using the same water bottle.. few teachers think it is bad idea..
is there any scientific backup/studies on these..

(basically the students are either lazy to bring their own bottles or they think it is fashion of drink of each)
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It's not a good idea.  :-(  

General Rule: Be safe; avoid risks.

No scientific "study" required (or done).  :-)
Good article here:

Colds, strep, mumps, herpes, and mono are some of the transmittable diseases.
Paul SauvéRetiredCommented:
@by: aadih

>>No scientific "study" required (or done).  :-)

That YOU know of!


Exactly, many diseases can be transmitted through saliva, as is shown in this answer from
What Diseases Can Be Transmitted through Saliva?
There are various types of diseases that can be transmitted through saliva. These include the common cold, flu, upper respiratory infection, meningitis, bacterial meningitis, mononucleosis, Epstein-Barr virus, cold sores, cytomegalovirus, molluscum contagiosum, hepatitis B, chronic hepatitis B, and polio.
My guess is that the few teachers think it is bad idea will make it to retirement. Not to sure about the other teachers!
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No scientific study directly on "sharing a water bottle."  ;-)
But you should be able to find scientific studies that show, for example, that herpes is transmitted by sharing utensils.  You could of course argue that a water bottle is not a utensil.
No arguments are necessary, as they produce more heat than light.  :-)

Repeat: "General Rule: Be safe; avoid risks."
Communicable diseases are often spread by such behavior. Colds and flu spread easily.
Meningitus is a very serious one. Adults can handle colds and flu better than kids, so kids should be protected more and take more precautions.

This is about shared water bottles:
It's also a danger to re-use your own water bottles as well as metal water bottles.
dhsindyRetired considering supplemental income.Commented:
Saliva contains DNA enough said.

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25112Author Commented:
helped- thanks.
Do research on this if you like. Every bodily fluid you can think of, is cleaner than the water you drink, So no worries on water bottle.
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