Figure 2
Distribution of the amount of Mycobacterium avium subsp.paratuberculosis (Map) shed per kg of faeces of transiently infectious (F T ), subclinically infected (F Is ) and clinically affected (F Ic ) animals used in the Map spread model within a dairy herd*. *Distributions are here in log(Map)/kg of faeces (and not in Map/animal/day). Transiently infectious animals produce from 0.5 to 10 kg of faeces per day during 25 weeks on average (f 1 , f 2 , f Y ), whereas Is and Ic animals are cows producing 30 kg of faeces per day (f A ) for a longer period of time (Tables 1 and 2). Adults' contribution to total Map shed is thus more important than the one of transiently infectious animals.