COVID-19 lockdowns in early 2020 reduced human mobility, providing an opportunity to disentangle its effects on animals from those of landscape modifications. Using GPS data, we compared movements and road avoidance of 2300 terrestrial mammals (43 species) during the lockdowns to the same period in 2019. Individual responses were variable with no change in average movements or road avoidance behavior, likely due to variable lockdown conditions.
View Article and Find Full Text PDFFor grazing herbivores, dung density in feeding areas is an important determinant of exposure risk to fecal-orally transmitted parasites. When host species share the same parasite species, a nonrandom distribution of their cumulative dung density and/or nonrandom ranging and feeding behavior may skew exposure risk and the relative selection pressure parasites impose on each host. The arid-adapted Grevy's zebra () can range more widely than the water-dependent plains zebra (), with which it shares the same species of gastrointestinal nematodes.
View Article and Find Full Text PDFInt J Parasitol Parasites Wildl
August 2020
Eco-immunological research is encumbered by a lack of basic research in a wild context and by the availability of few non-invasive tools to measure the internal state of wild animals. The recent development of an enzyme-linked immunosorbent assay for measuring immunoglobulins in faecal samples from Soay sheep prompted us to optimize such an assay to measure immunoglobulin A (IgA: an antibody associated with parasitic nematode fecundity) in faecal samples from equids. We measured total IgA in domestic donkeys, wild plains zebras, and wild Grevy's zebras sharing the same landscape in central Kenya over two field seasons.
View Article and Find Full Text PDFAt a workshop on 7-8 November 2018 the leaders of 26 advanced vaccinology courses met to carry out an extensive review of the existing courses worldwide, in order to identify education gaps and future needs and discuss potential collaboration. The main conclusions of the workshop concerned: opportunities for strengthening and expanding the global coverage of vaccinology training; evaluation of vaccinology courses; updating knowledge after the course; how to facilitate post-course 'cascade' training; developing and sharing best practices; the application of online and innovative approaches in adult education; and how to reduce costs and facilitate wider access to vaccinology training. The importance of collaboration and information exchange through networks of alumni and between courses was stressed.
View Article and Find Full Text PDFTravel Med Infect Dis
March 2010
Although tuberculosis (TB) is not highly transmissible, there is a risk of transmission of infection when close contact occurs between a person with active pulmonary TB and other passengers for prolonged periods during air travel. The World Health Organization first published Tuberculosis and air travel: guidelines for prevention and control in 1998, in response to several incidents involving TB in air travellers, with a second edition in 2006. A further revision was undertaken to address issues arising from the emergence of extensively resistant TB (XDR-TB), the occurrence of several international incidents involving TB and air travel, and the entry into force of the revised International Health Regulations (IHR) in 2007.
View Article and Find Full Text PDFTravel Med Infect Dis
July 2008
Air travel provides opportunities for infectious diseases to spread rapidly between countries and continents. There may be a potential risk of transmission during the flight, notably with airborne and droplet-borne respiratory infections. Seven episodes of potential transmission of TB infection during air travel reported in 1992--1994 caused widespread concern.
View Article and Find Full Text PDF