Erinome: Hello dear friends, and welcome back to our health talk show. I'm Erinome.
Enceladus: And I'm Enceladus. Wow, Erinome, it's getting colder these days.
Erinome: It really is. And you know, when the weather turns cold, people start talking about the flu.
Enceladus: Yes, exactly. I saw some news that the flu season might come early this year. And in some places, like Guangdong, many people are getting sick.
Erinome: Oh no. Is it the same flu as last year?
Enceladus: Actually, no. The news says the main virus this year is different. Last year it was mostly A(H1N1), but this year it seems to be A(H3N2).
Erinome: A different virus? That sounds serious. It also explains why my friend asked me a question yesterday.
Enceladus: What did she ask?
Erinome: She said, "I got a flu shot last year, why do I need to get it again this year?" It's a good question, you know?
Enceladus: It is a very common question. And the World Health Organization has a clear answer. There are two main reasons.
Erinome: Okay, I'm listening.
Enceladus: First, the flu virus is very tricky. It changes easily. It's like it has a new face every year.
Erinome: A new face? Haha, that's a good way to put it.
Enceladus: So, the vaccine from last year might not work well against this year's new virus. The vaccine has to be updated every year to match the new virus.
Erinome: I see. So the vaccine is like a new key for a new lock each year. What's the second reason?
Enceladus: The second reason is about our own bodies. After we get the vaccine, our protection, the antibodies, will slowly go down.
Erinome: How long does the protection last?
Enceladus: Usually, it becomes much lower after 6 to 8 months. So, to be safe during the flu season, we need a new shot every year.
Erinome: That makes total sense. It's like an annual health investment.
Enceladus: Exactly! An investment for yourself and your family.
Erinome: I also read that it's very important for older people to get the vaccine. Why is that?
Enceladus: Yes, it's super important for them. Many older people have other health problems, like heart disease or diabetes.
Erinome: Right. My grandfather has high blood pressure.
Enceladus: If they get the flu, it can make those problems much worse. The flu can also lead to very serious issues like pneumonia.
Erinome: Wow, that's scary. So, can my grandfather with high blood pressure get the flu shot?
Enceladus: The information says yes, as long as his condition is well-controlled and he has no other problems that prevent vaccination.
Erinome: That's great to hear. I will tell him. Are there different kinds of flu vaccines?
Enceladus: Yes, there are. The main ones are the trivalent vaccine and the quadrivalent vaccine.
Erinome: Trivalent and quadrivalent? Those words sound a bit difficult.
Enceladus: Haha, let's make it simple. "Tri" means three. The trivalent vaccine protects against three types of flu viruses.
Erinome: Okay, three types. So "quad" means four?
Enceladus: You got it! The quadrivalent vaccine protects against four types. It just adds protection for one more type of flu virus.
Erinome: I see. So the four-in-one is better than the three-in-one?
Enceladus: The news says that both are good and safe. The most important thing is to get vaccinated before the flu season really starts. Any vaccine is better than no vaccine.
Erinome: That's a good point. I also heard about a nasal spray vaccine. Is that true?
Enceladus: Yes, there is one. It's a live attenuated vaccine, and it's for children and teenagers from 3 to 17 years old.
Erinome: A spray in the nose instead of a shot in the arm? I bet many kids would like that!
Enceladus: I think so too! It's a good option for them.
Erinome: So, when is the best time to get the vaccine?
Enceladus: Well, it takes about two weeks for the vaccine to start protecting you. So you should get it before the flu season hits its peak.
Erinome: So, now is a good time?
Enceladus: Yes, now is a perfect time. Don't wait until everyone around you is sick.
Erinome: You know, some people think the flu is just a bad cold. But it's not, right?
Enceladus: Oh no, it's very different. The flu comes on suddenly with high fever, like 39 degrees, and terrible body aches. A cold is usually much milder.
Erinome: And the flu can cause serious complications, which you mentioned. That almost never happens with a cold.
Enceladus: That's right. It's really important to take it seriously. Experts say there is a "golden 48 hours" for treatment.
Erinome: What does that mean?
Enceladus: It means if you get symptoms, you should see a doctor and start antiviral medicine within 48 hours. It helps a lot.
Erinome: Good to know. Besides the vaccine, are there other things we can do to protect ourselves?
Enceladus: Of course. Good personal habits are key. Like washing your hands often.
Erinome: That's the number one rule, right?
Enceladus: It is! Also, keep your rooms clean and open the windows to let fresh air in.
