Vocabulary notes

in fact - фактично

at least – принаймні, щонайменше

act as – виступати, діяти як

unlike something – на відміну від

infect with – заражати (чимось)

in addition (to) – до того ж, на додачу (до)

III. Match two halves of the sentences

1. Two types of vaccine to protect horses from West Nile virus are available this year. West Nile kills about one-third of unvaccinated horses that mosquitoes… 2. Viruses, like bacterial infective agents,… 3. Smallpox was effectively elimated as a scourge on humanity by worldwide vaccination programs. In… 4. Virions contain at least… 5. Not infrequently, the virus-specific T lymphocyte kills vital cells such as nerve cells (neurons), muscle cells, and liver cells, all of which carry out important functions. In… 6. Unlike bacteria,…

a) …fact the chances of getting smallpox from a bad vaccine were greater than that of ever encountering the virus in nature. b) …addition, the death of cells results in an inflammatory response, which also can damage vital tissues. c) …infect with the virus, a Kansas State University scientist said. d) …viruses mimic the metabolic functions of their host cells. e) …40 proteins and lipids, as well as internal structures called lateral bodies. f) …act as antigens in the body and elicit formation of antibodies in an infected individual.

IV. Split the text “Viruses” into several logical parts and give titles to them

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II. Read the following text paying attention to the highlighted words. Explain or interpret the contextual meaning of the underlined phrases	\|	V. Think of possible questions for the following answers

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