Shaking hands without proper hygiene can transmit infections, warns Russian bacteriologist Vera Bondarchuk.
Hands touch contaminated surfaces like door handles, railings, and phones throughout the day.
After a handshake, touching your face or eating can transfer germs into your body.
Not washing hands after using the toilet can spread intestinal infections like salmonellosis and rotavirus.
Children, elderly, and immunocompromised individuals are at higher risk.
Regular handwashing with soap is the best prevention.
