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22 OCTOBER 1999 ------------------------- INCIDENCE RISING TB incidence has increased dramatically in the last few years and is occurring in new areas, but why? asked VLAs Richard
Clifton-Hadley. "There must be some factors that allow TB to develop." However, TB could have been in the environment in these areas before, he said. There is also little known
about the transmission pathway for TB, he added. "But inhalation appears to be more important than ingestion." "Work in Ireland suggests the tonsils have a role, but we dont
know whether its the bacterias point of entry or exit." *
