Greenwood, Z, et al.
Gastrointestinal infection among international travelers globally. Journal of Travel Medicine
2008; 15: 221–228.
Swaminathan, A, et al.
A global study of pathogens and host risk factors associated with infectious gastrointestinal disease in returned international travelers. Journal of Infection
2009; 59: 19–27.
Ravel, A, et al.
Description and burden of travel-related cases caused by enteropathogens reported in a Canadian community. Journal of Travel Medicine
2011; 18: 8–19.
Harvey, K, et al.
Surveillance for travel-related disease – GeoSentinel Surveillance System, United States, 1997–2011. Morbidity and Mortality Weekly Report. Surveillance Summaries
2013; 62: 1–23.
Leder, K, et al.
GeoSentinel surveillance of illness in returned travelers, 2007–2011. Annals of Internal Medicine
2013; 158: 456–468.
Bogglid, AK, et al.
Travel-acquired infections and illnesses in Canadians: surveillance report from CanTravNet surveillance data, 2009–2011. Open Medicine
2014; 8: e20–32.
Cotton, JA. Host parasite interactions and pathophysiology in Giardia infections. International Journal of Parasitology
2011; 41: 925–933.
Carmena, D. Waterborne transmission of Cryptosporidium and Giardia: detection, surveillance and implications for public health. In: Mendez-Vilas, ed. Current Research, Technology and Education Topics in Applied Microbiology and Microbial Biotechnology, 2nd edn. Badajoz: Formatex, 2010.
Baldursson, S, Karanis, P. Waterborne transmission of protozoan parasites: review of worldwide outbreaks- an update 2004–2010. Water Research
2011; 45: 6603–6614.
Smith, HV, et al.
Cryptosporidium and Giardia as foodborne zoonoses. Veterinary Parasitology
2007; 149: 29–40.
Pozio, E. Epidemiology and control prospects of foodborne parasitic zoonoses in the European Union. Parassitologia
2008; 50: 17–24.
Younas, M, Shah, S, Talaat, A. Frequency of Giardia lamblia infection in children with recurrent abdominal pain. Journal of Pakistan Medical Association
2008; 58: 171–174.
Ang, LH. Outbreak of giardiasis in a daycare nursery. Communicable Disease and Public Health
2000; 3: 212–213.
Hlavasa, MC, et al.
Surveillance for waterborne disease outbreaks and other health events associated with recreational water – United States, 2007–2008. Morbidity and Mortality Weekly Report. Surveillance Summaries
2011; 60: 1–32.
Ravel, A, et al.
Epidemiological and clinical description of the top three reportable parasitic diseases in a Canadian community. Epidemiology and Infection
2013; 141: 431–442.
Vrbova, L, et al.
A descriptive study of reportable gastrointestinal illnesses in Ontario, Canada, from 2007 to 2009. BMC Public Health
2012; 12: 970.
Gormley, FJ, Rawal, N, Little, CL. Choose your menu wisely: cuisine-associated food-poisoning risks in restaurants in England and Wales.
Epi and Infect
2012; 140: 997–1007.
Dohoo, I, Martin, W, Stryhn, H (eds). Veterinary Epidemiologic Research, 2nd edn.
Charlottetown: VER Inc., 2010.
Van Herck, K, et al.
Knowledge, attitudes and practices in travel-related infectious diseases: the European airport survey. Journal of Travel Medicine
2004; 11: 3–8.
Baer, A, et al.
Risk factors for infections in international travelers: an analysis of travel-related notifiable communicable diseases. Travel Medicine and Infectious Disease
2014; 12: 525–533.
Kendall, ME, et al.
Travel-associated enteric infections diagnosed after return to the United States, Foodborne Disease Active Surveillance Network (FoodNet), 2004–2009. Clinical Infectious Disease
2012; 54 (Suppl. 5): S480–487.
Hoque, ME, et al.
Risk of giardiasis in Aucklanders: a case-control study. International Journal of Infectious Disease
2002; 6: 191–197.
Espelage, W, et al.
Characteristics and risk factors for symptomatic Giardia lamblia infections in Germany. BMC Public Health
2010; 10: 41.
Boggild, AK, et al.
Prospective analysis of parasitic infections in Canadian travelers and immigrants. Journal of Travel Medicine
2006; 13: 138–144.
Bradford, SA, Schijven, J. Release of Cryptosporidium and Giardia from diary calf manure: impact of solution salinity. Environmental Science and Technology
2002; 36: 3916–3923.
Langkjaer, RB, et al.
Molecular and phylogenetic characterization of Cryptosporidium and Giardia from pigs and cattle in Denmark. Parasitology
2007; 134: 339–350.
Cryptosporidium and Giardia spp. infections in humans, animals and the environment in Poland. Parasitology Research
2008; 104: 1–17.
Plutzer, J, Tomor, B. The role of aquatic birds in the environmental dissemination of human pathogenic Giardia duodenalis cysts and Cryptosporidium oocysts in Hungary. Parasitology International
2009; 58: 227–231.
Sprong, H, et al.
Identification of zoonotic genotypes of Giardia duodenalis
. PLoS Neglected Tropical Diseases
2009; 3: e558.
Thompson, RC, et al.
The molecular epidemiology of Cryptosporidium and Giardia infections in coyotes from Alberta, Canada, and observations on some cohabiting parasites. Veterinary Parasitology
2009; 159: 167–170.
Stuart, JM, et al.
Risk factors for sporadic giardiasis: a case-control study in southwestern England. Emerging Infectious Diseases
2003; 9: 229–233.
Snel, SJ, et al.
A tale of two parasites: the comparative epidemiology of cryptosporidiosis and giardiasis. Epidemiology and Infection
2009; 137: 1641–1650.
Boulware, DR. Influence of hygiene on gastrointestinal illness among wilderness backpackers. Journal of Travel Medicine
2004; 11: 27–33.
Yoder, J, et al.
Surveillance for waterborne disease and outbreaks associated with drinking water and water not intended for drinking – United States, 2005–2006. Morbidity and Mortality Weekly Report. Surveillance Summaries
2008; 57: 39–62.
Pardhan-Ali, A, et al.
A descriptive analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991–2008. BMJ Open
2012; 2: e000732.
Vollaard, AM, et al.
Risk factors for transmission of foodborne illness in restaurants and street vendors in Jakarta, Indonesia. Epidemiology and Infection
2004; 132: 863–872.
Gould, LH, et al.
Contributing factors in restaurant-associated foodborne disease outbreaks, FoodNet sites, 2006 and 2007. Journal of Food Protection
2013; 76: 1824–1828.
Rendtorff, RC. The experimental transmission of intestinal protozoan parasites. II Giardia lamblia cysts given in capsules. American Journal of Hygiene
1954; 59: 209–220.
Common coinfections of Giardia intestinalis and Helicobacter pylori in non-symptomatic Ugandan children. PLoS Neglected Tropical Diseases
2012; 6: e1780.
Bhavnani, D, et al.
Synergistic effects between Rotavirus and coinfecting pathogens on diarrheal disease: evidence from a community-based study in Northwestern Ecuador. American Journal of Epidemiology
2012; 176: 387–395.
Mukherjee, AK, et al.
Association between Giardia duodenalis and coinfection with other diarrhea-causing pathogens in India. Biomedical Research International
2014; 2014: 786480.