Consequently, it appears that the rabies viruses might be circulated among bat populations inhabiting in contiguous areas, and although the variant distributions may change slowly over time, natural barriers such as mountain ranges may play an important role in delimiting rabies foci, resulting in regionally-differentiated rabies virus variants.
The Council suggested that the letters addressed to scientists and technicians who are members of the committees might be circulated to the Working Party on Program of Work and Associated Long-Term Problems which the Council was establishing in accordance with the recommendation of the Special Session of the Conference.
With BSE in British cattle on the wane (see chart), some experts now worry that BSE might be circulating in sheep, where it could be masked by scrapie, a related disease with very similar symptoms (Science, 17 March, p. 1906).
In addition, a more pathogenic M. tuberculosis strain might be circulating in Peru.
Whole blood contains different types of cells, so miRNAs detected might be circulating miRNAs as well as cellular miRNAs from additional cells types.
Multiple (six) water (negative) controls were included in every run to detect low level contamination and a PCR to amplify a sequence that is conserved in most murine leukaemia viruses was included in order to expose any circulating MLV contamination and to detect any variant of XMRV that might be circulating in the UK CFS population.
Although SAT 1 has not been previously reported in Ethiopia (7, 8, 24 ), it might be circulating within wildlife and infrequently transmitted to domestic animals.
We embarked on the present study in large part to determine whether alleles encoding pseudogenes (true or functional) might be circulating within the human population.
This strain is genetically and phenotypically distinct from the Serro-2 strain that was isolated from the same region in 2005 (7); thus, >1 VACV might be circulating in Serro and possibly other regions of Brazil (7, 8).
Because of the high number of cases and large geographic area involved, health officials were concerned that aflatoxin-contaminated maize might be circulating in the regional maize distribution system.
This finding suggests that a considerable number of unknown carriers might be circulating in our hospital that are not subjected to contact precautions because of the unawareness of their status.
