| affect child | 0.53 |
| begin with fever | 0.35 |
| clear up within 3–7 days | 0.35 |
| occur in late winter | 0.35 |
| affect adult | 0.33 |
| head to toe | 0.30 |
| spread in the air | 0.29 |
| be a number of theories | 0.25 |
| become disseminated in … | 0.25 |
| spread through school | 0.16 |
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| fever | 0.48 |
| blister | 0.42 |
| serious complications | 0.37 |
| tiredness | 0.36 |
| shingle | 0.35 |
| pneumonia | 0.34 |
| headache | 0.33 |
| zoster | 0.21 |
| high temperature | 0.19 |
| stillbirth | 0.19 |
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| milder cases | 0.28 |
| quicker recoveries | 0.28 |
| scar | 0.16 |
| brain damage | 0.16 |
| disease | 0.48 |
| contagious childhood di… | 0.19 |
| caused by the varicella… | 0.54 |
| prevented | 0.49 |
| caused by virus | 0.46 |
| treated | 0.41 |
| transmitted | 0.40 |
| used in earlier centuri… | 0.35 |
| caused by infection | 0.29 |
| complicated by encephal… | 0.28 |
| prevented with vaccine | 0.28 |
| common in the united st… | 0.21 |
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