Answer:
Common cold: Most people recover on their own in two weeks.
Hepatitis, Viral: It is a liver disease caused by the hepatitis virus.
Influenza (also known as "flu") is a contagious respiratory disease caused by influenza viruses. In many cases the patient has no fever.
Step-by-step explanation:
Common cold:
Transmission: Through the mucous membranes: mouth, eyes or nose, or when someone who is sick coughs, sneezes or speaks. Also contact contaminated objects.
Symptoms: runny or stuffy nose, sore throat, cough, congestion, body aches or pain from mild headaches, sneezing, low fever
Treatments: paracetamol and ibuprofen to relieve pain and reduce fever.
Hepatitis, Viral:
Transmission: A person who is not infected and is not vaccinated eats or drinks something contaminated by feces of a person infected by that virus.
Symptoms: tiredness, nausea, fever, loss of appetite, stomach ache, diarrhea
Treatments: There is no specific treatment. Rest, drink plenty of fluids, medication to relieve symptoms and a diet rich in protein.
Influenza:
Transmission: Contagion from person to person, through a sick person who coughs, sneezes or talks near a healthy person.
Symptoms: fever, chills, myalgia, headache, malaise, nonproductive cough, sore throat and rhinitis
Treatments: Specific antivirals for influenza.