lunes, 18 de mayo de 2009

Influenza A H1N1

1. What is an epidemic?
Cases of a certain disease occur in a given human population, during a given period, substantially exceed what is "expected," based on recent experience.

2. What is a pandemic?
Is an epidemic of infectious disease that spreads through populations across a large region; for instance a continent, or even worldwide.

3. What is an infectious disease?
An infectious disease is a clinically evident disease resulting from the presence of pathogenic microbial agents, including pathogenic viruses, pathogenic bacteria, fungi, protozoa.

4. What is a virus?
Is a sub-microscopic infectious agent that is unable to grow or reproduce outside a host cell. Viruses infect all types of cellular life.

5. What makes the H1N1 virus a "novel" or "new" virus?
That this one cames fromthe pigs.

6. How do viruses mutate?
Because the climate changes and the pollution grows and the virus makes stronger or different.

7. What does it mean that this virus has "parts" from other known swine flus, human flus and American bird flus?
Becasue the virus stays alife and time passes more virus are known, but this one has part from other ones.

8. How does that process happen?
The transmisssion from tthe pigs for the humans.

9. How is the flu vaccine created?
From the virus they start makingin a lab the vaccine and the time expected to be the vaccine done is like 6 months.

10. Why are some viruses transmittable from human to human while others are not (avian flu)?

Because of changes in certain proteins on the surface of the influenza A virus.

11. How does Tamiflu work?

Tamiflu capsules and suspension contain the active ingredient oseltamivir phosphate, which is a type of medicine called a neuraminidase inhibitor. It is used to treat and prevent infection with the influenza (flu) virus.

12. Scientists worry that H1N1 might become resistant to Tamiflu. How might that happen?

Because virus change and might me resistant to Tamiflu, but I hope not.

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