| dirty houses | 0.53 |
| unclean homes | 0.50 |
| the house | 0.47 |
| sewer | 0.47 |
| basement | 0.45 |
| building | 0.45 |
| group | 0.43 |
| kitchen | 0.42 |
| the united states | 0.41 |
| wide range of environme… | 0.37 |
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| contaminate food | 0.55 |
| carry bacteria | 0.55 |
| come into contact | 0.51 |
| hide place | 0.50 |
| spread gastroenteritis | 0.48 |
| carry salmonella | 0.48 |
| carry disease | 0.48 |
| forage for food | 0.48 |
| get rid | 0.46 |
| eat the bait | 0.45 |
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| allergy | 0.42 |
| food poisoning | 0.29 |
| disease | 0.24 |
| damage | 0.23 |
| rapid, jerky walk | 0.27 |
| size | 0.16 |
| six legs | 0.57 |
| flattened, oval shape | 0.54 |
| wing | 0.53 |
| long, filamentous anten… | 0.51 |
| spiny legs | 0.48 |
| stiff hairs | 0.47 |
| two antennae | 0.39 |
| some | 0.35 |
| brain | 0.35 |
| three life stages | 0.31 |
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| scavenger | 0.48 |
| insect | 0.37 |
| insects of the order | 0.28 |
| the most common insects | 0.25 |
| social insects | 0.25 |
| exposed to light | 0.53 |
| controlled | 0.53 |
| eliminated | 0.51 |
| caught | 0.51 |
| hard to kill | 0.42 |
| killed | 0.41 |
| concerned | 0.39 |
| trapped | 0.37 |
| difficult to eradicate | 0.33 |
| attracted to food | 0.32 |
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