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离线wanny
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只看楼主 倒序阅读 使用道具 0楼 发表于: 2009-08-15
1、

Black-legged, or deer ticks, can transmit Lyme disease to humans.


Ticks latch onto skin where they feed on blood.


Ticks can cause Lyme disease which may cause a "bull's-eye" rash.
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离线wanny
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只看该作者 1楼 发表于: 2009-08-15
2

Female black widows have a bright-colored "hourglass" on their underside.


Tiny red fang marks identify black widow spider bites.
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只看该作者 2楼 发表于: 2009-08-15
3、

Brown recluses have a "violin" pattern in the upper body, where legs attach.


A brown recluse spider's bite can cause tissue death — as shown here.
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离线wanny
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只看该作者 3楼 发表于: 2009-08-15
4、

Head lice are grayish-white, and no bigger than sesame seeds.


Scalp with skin infection from scratching; lice eggs are "glued" to the hair.
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离线wanny
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只看该作者 4楼 发表于: 2009-08-15
5

A close look at a flea.


Flea bites result in raised itching spots with a puncture in the center.
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只看该作者 5楼 发表于: 2009-08-15
6

Like a wasp, a yellow jacket can inflict multiple stings.


A wasp sting (left) and a severe allergic reaction to a wasp sting (right).
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离线wanny
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只看该作者 6楼 发表于: 2009-08-15
7

A close look at a red fire ant.


Painful bites from the fire ant quickly fill with pus.
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只看该作者 7楼 发表于: 2009-08-15
8

Chiggers, or harvest mites, usually cannot be seen without magnification


Itchy red welts can result from chigger bites.
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只看该作者 8楼 发表于: 2009-08-15
9

Scabies are tiny mites that burrow into your skin.


Weeks may pass before itching and skin sores develop.
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只看该作者 9楼 发表于: 2009-08-15
10

Bedbugs are very tiny and can be seen by the astute observer.


Bedbug bites do not usually require treatment.
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只看该作者 10楼 发表于: 2009-08-15
11

The puss caterpillar is close to 1 inch long.


Evidence of contact with a puss caterpillar.
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只看该作者 11楼 发表于: 2009-08-15
12

The Arizona bark scorpion's venom is very dangerous.
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只看该作者 12楼 发表于: 2009-08-15
13

Deerflies are larger than a housefly and have a pattern on the wing.
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只看该作者 13楼 发表于: 2009-08-15
Oh,horrible！
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只看该作者 14楼 发表于: 2009-08-15
14

Mosquitoes can carry diseases such as West Nile virus and dengue fever.
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