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6 reasons for persistent bad breath

6 reasons for persistent bad breath

VnExpress
Persistent bad breath can stem from bacterial buildup on the tongue, insufficient water intake, dental appliances, or dietary choices.
How Nipah virus is transmitted

How Nipah virus is transmitted

VnExpress
Nipah virus transmission is narrower than Covid-19, primarily spreading from natural hosts (bats), intermediate animals, and through close, prolonged human-to-human contact.