Why get vaccinated against influenza? Influenza (Flu) Influenza is a common viral illness. In Hong Kong, seasonal influenza is more prevalent in January to March and July to August. It usually presents with fever, sore throat, cough, muscle aches, fatigue, headache, and runny or stuffy nose. These s...

What is Hepatitis B? Hepatitis B is a viral infection of the liver which causes damage to the liver cells and impairs liver function. Acute Hepatitis B Acute Hepatitis B infection refers to a short-term infection. Symptoms include loss of appetite, feeling sick, nausea, tiredness, general aches and ...

What is Pertussis? Pertussis is a highly contagious respiratory infection spread by droplets when an infected person coughs or sneezes, or via direct contact with respiratory secretions of the infected. The disease affects people of all ages, and infant who are too young to be vaccinated are most vu...

Chickenpox is a very contagious disease caused by the Varicella-zoster virus (VZV). It is spread by breathing in droplets from infected people that get into the air when they cough or sneeze, or touching the virus particles from chickenpox blisters. People who have never had the disease or been vacc...

Rubella is also known as ‘German Measles’. It is an infectious disease caused by Rubella virus. It can be transmitted by contact with secretions from nose and pharynx of infected persons through droplet spread or direct contact with patients. Symptoms are usually mild, including fever, headache,...

What is HPV? Human papillomaviruses (HPV) are a very common family of viruses that infect epithelial tissue of males and females. More than 150 HPV types have been identified. Most HPV types cause common warts on the hands and feet. Approximately 40 HPV types can infect cells on the genitals, mouth ...