An epidemic may be centred in a country.Logical formLearned from8 sentences. An epidemic may last for months.Logical formLearned from8 sentences. A (cholera epidemic) may end.Logical formLearned from8 sentences. A (cholera epidemic) can be under control.Logical formLearned from8 sentences. Outbreaks can be constituted-of-or-filled-with epidemics.Logical formLearned from8 sentences. Epidemics can be constituted-of-or-filled-with (heart disease).Logical formLearned from8 sentences. An (obesity epidemic) can be worldwide.Logical formLearned from8 sentences. An epidemic may be concentrated in groups.Logical formLearned from8 sentences. Some epidemics can be in a continent.Logical formLearned from8 sentences. A risk of (bird flu) may trigger an epidemic.Logical formLearned from8 sentences. An epidemic can be under way.Logical formLearned from8 sentences. A grip can be on an epidemic.Logical formLearned from8 sentences. A (bird flu epidemic) can be worldwide.Logical formLearned from8 sentences. An epidemic may break.Logical formLearned from8 sentences. A curve may pertain-to an epidemic.Logical formLearned from8 sentences.