    Sentence i: Wat i isas important as idanulying’ wague  symptoms? :    ‘Sentence 2: Most work has Ween dane on the spread of  the plague, in England. aad even estimates: of overall  “population at the stirt vaty by over 100%. 3s no census  _ was. undertaken between the time of pokcatins ‘ofthe  Domesday Book andthe year 377:                    