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8. New Model May Help Scientists Predict And Prevent Influenza Outbreaks

influenza

грип

to substitute

заміщати

an outbreak

раптовий початок

to evade

уникати (чогось)

to affect

впливати на

defense

захист

strain

біол. штам

to spread

розповсюджувати

to combat

боротися

likelihood

імовірність

immunization

імунізація

to remain

залишатися

to assess

оцінювати

rate

інтенсивність

to evolve

розвиватися

findings

одержані дані

Each year, the influenza virus evolves. And each year, public health officials try to predict what the new strain will be and how it will affect the population in order to combat it. The paper, published in the journal Science, shows the relationship between the evolution of the virus and immunization rates needed to prevent an outbreak in the population. These findings can help to prevent future outbreaks. Public health officials will be able to assess the usefulness of a vaccine based upon its relationship to the current influenza strain and the population’s immunity level. Through previous vaccinations or infections with earlier strains of the influenza virus, many individuals already have some level of immunity. The influenza virus is continually evolving, however. By substituting different amino acids at key molecular points, the virus increases its chances of evading the immune system’s defenses, allowing it to reproduce and spread. As the number of amino acid differences between a new strain and the strain an individual was vaccinated against increases, the likelihood of becoming infected increases, as does the likelihood of becoming infectious and the length of time the individual will remain infectious. These factors combine to increase the chance of an outbreak in the population.

Speech patterns

in order to do smth.

щоб щось зробити

In order to confirm his hypothesis, the scientist made hundreds of experiments.

Щоб підтвердити свою гіпотезу, вчений провів сотні експериментів.

The likelihood of becoming infected increases, as does the likelihood of becoming infectious.

Зростає вірогідність бути зараженим, як і вірогідність стати носієм інфекції.

1. Say whether these statements are TRUE or FALSE.

1. The article discusses the virus of AIDS.

2. The research shows the dependence of immunization rates and the evolution of the virus.

3. The virus is not evolving any more.

2. Give English equivalents for the following word combinations:

захист імунної системи; попередня вакцинація; сучасний штам грипу; темп імунізації; амінокислоти; рівень імунітету населення; вірус грипу; державні санітарні службовці; ймовірність зростання зара-ження.

3. Give antonyms to the following words:

different, individual, to spread, to increase, to allow, to combine, previous, useful, to remain.

4. Write a list of keywords of the text.

Grammar Practice

1. Give as many derivatives as possible of the following words and translate them into Ukrainian:

continually, public, official, different, length, infection, combine, health.

2. Change the following sentences into negative.

1. The influenza virus evolves.

2. These findings can help to prevent future outbreaks.

3. Public health officials will be able to assess the usefulness of a vaccine.

4. The paper was published in the scientific journal.

3. Find all the occurrences of the words ending -s in the text and explain their functions.

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