Can Hepatitis B Be Transmitted Through Saliva?

Big Three Yang is a common manifestation of hepatitis B. To understand whether Big Three Yang is contagious, it is necessary to first understand its transmission routes. It is generally transmitted through blood, sexual contact, or certain bodily fluids. Generally speaking, saliva does not transmit hepatitis B. Patients should undergo regular check-ups, and if hepatitis B virus DNA replication is active, antiviral treatment should be promptly initiated. In daily life, it is also important to strengthen self-care and avoid infecting others.

Neither the saliva of patients with hepatitis B Big Three Yang nor that of patients with hepatitis B Small Three Yang can transmit hepatitis B, because the saliva of hepatitis B patients does not contain hepatitis B virus. Although hepatitis B Big Three Yang is highly contagious, hepatitis B virus mainly exists in liver cell nuclei, blood, and certain bodily fluids such as semen and vaginal secretions, while saliva and sweat do not contain hepatitis B virus.

"Big Three Yang" refers to the immunological markers of hepatitis B virus in patients with chronic hepatitis B or hepatitis B virus carriers, namely the positive status of hepatitis B surface antigen (HBsAg), hepatitis B e antigen (HBeAg), and hepatitis B core antibody (anti-HBC). These three positive markers often indicate active virus replication in the body, but whether it has caused severe liver cell damage depends on the results of liver function tests and the patient's subjective symptoms. In other words, not all cases of "Big Three Yang" indicate severe disease, but rather reflect the immunological status of the virus in the body.

Daily contact and shared meals do not transmit hepatitis B. The best prevention method is vaccination. Not all hepatitis B virus carriers are highly contagious, some may not be contagious or only have mild contagiousness. There is no need to fear hepatitis B virus carriers as much as a plague.