29. (A) since (B) even (C) yet (D) if

The Zika virus is spread to people mainly through the bite of an infected Aedes species mosquito. It can also be spread from a pregnant woman to her fetus and from a man to partners through sex. Many (31) become infected with the Zika virus will not even know that they have contracted the disease because symptoms are often (32). They may include fever, muscle aches, eye irritation or a rash. The (33) is rarely deadly and usually lasts for a few days to a week. For pregnant women, the story is not so simple. Zika virus has been linked to infants born with microcephaly, a birth (34) in which babies are born with smaller heads. (35) microcephaly, fetuses and infants infected with Zika virus may have eye defects, hearing problems and growth retardation, among other conditions. The link between Zika virus and birth defects has become strong enough that the Centers for Disease Control and Prevention now recommends that pregnant women avoid travel to areas where Zika is spreading. 31. (A) where (B) who (C) which (D) whose

29.
(A) since
(B) even
(C) yet
(D) if

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