I've heard that up to 20% of the population carries meningococcal bacteria in their nasopharynx. why do some people develop the disease while others do not? (Teo Em, 32 years old, Ca Mau)

Young children are highly susceptible to respiratory syncytial virus (RSV), which causes bronchiolitis and wheezing. My one-month-old child, can they receive the RSV monoclonal antibody? (Bao Khang, 34, Hanoi)

Numerous studies indicate that respiratory syncytil virus (RSV) and pneumococcus frequently cause illness in children, accounting for a significant portion of hospitalizations due to severe pneumonia.

New research indicates the shingles vaccine contributes to extending a healthy lifespan by slowing the process of biological aging.

Many people believe their household pets are "clean" and thus skip rabies vaccinations after being scratched or bitten, leading to a high risk of contracting the disease, which is 100% fatal once symptoms appear.

My 13-month-old child has hand, foot, and mouth disease. I've heard that severe cases can lead to delayed cognitive development. Is this true, and how can it be prevented? (Phuong Thao, 33, Ho Chi Minh City)

Subtle symptoms, rapid progression, potential for death within 24 hours, and the risk of multiple reinfections are critical facts parents must understand about hand-foot-and-mouth disease in children.

Healthy men should still get vaccinated against hpv because the virus can silently infect and cause diseases like genital warts and cancer, while also being transmitted to partners.

My three-year-old child has grade one hand, foot, and mouth disease and is being monitored at home. They are scheduled for a meningococcal vaccine; when can they receive it? (Hai Nam, 30, An Giang)

A 42-year-old reader from Da Nang asks if consuming bitter melon regularly can cool the liver, detoxify it, and prevent liver cancer, citing information about its benefits.

Persistent fever, joint pain, cough, chest pain, or transient rashes can be discreet symptoms of meningococcal disease, easily mistaken and overlooked.

My brother recently discovered he has cirrhosis due to a long-standing hepatitis B virus infection, yet he had no symptoms before. Why is this? (Loc Nguyen, 30 years old, An Giang)

For over 30 years, Vuong, 50, from Phu Yen, has lived with his wife who has hepatitis B, consistently adhering to vaccination and regular check-ups to avoid infection.

I have received flu vaccinations for two consecutive years and found them effective in preventing the flu. Next week, I have an appointment for a booster shot; will this overload my immune system? (Thien An, 30, Phu Tho)