Answer:
This pathogen spreads through childbirth or close physical contact with an infected person
Step-by-step explanation:
To better explain the hepatitis B infection process, it is likely that Tia added the following information to the diagram: "This pathogen spreads through childbirth or close physical contact with an infected person."
This is because the virus responsible for the spread of hepatitis B is found in the blood, saliva, semen and vaginal secretions of an infected person. Thus, the transmission of this virus occurs in the contact of a healthy person with these fluids.