The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Terry D Galloway - One of the best experts on this subject based on the ideXlab platform.
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Interna Caused
2013Co-Authors: Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot fl ies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss. Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human ophthalmomyiasi
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human Ophthalmomyiasis interna caused by hypoderma tarandi northern canada
Emerging Infectious Diseases, 2008Co-Authors: Philippe R S Lagacewiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human Ophthalmomyiasis by Hypoderma spp. is not known. Eyebrows and eyelashes have been suggested as possible targets for oviposition (3). Oviposition on human scalp hair has been achieved experimentally and could be the preferential site in humans (3). An alternative explanation is transfer of the larvae directly from the guard hairs of the caribou to the human eye or skin through close contact with animal pelts. The parasite does not appear to complete its life cycle in humans (1,2). We present the first, to our knowledge, 2 published cases of Ophthalmomyiasis interna caused by H. tarandi in Canada. Furthermore, we present the first published use of Hypoderma spp. serologic testing to assist in the diagnosis of myiasis in humans.
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Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada
Emerging infectious diseases, 2008Co-Authors: Philippe R. S. Lagacé-wiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot flies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss.
Ravi I Dookeran - One of the best experts on this subject based on the ideXlab platform.
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Interna Caused
2013Co-Authors: Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot fl ies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss. Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human ophthalmomyiasi
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human Ophthalmomyiasis interna caused by hypoderma tarandi northern canada
Emerging Infectious Diseases, 2008Co-Authors: Philippe R S Lagacewiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human Ophthalmomyiasis by Hypoderma spp. is not known. Eyebrows and eyelashes have been suggested as possible targets for oviposition (3). Oviposition on human scalp hair has been achieved experimentally and could be the preferential site in humans (3). An alternative explanation is transfer of the larvae directly from the guard hairs of the caribou to the human eye or skin through close contact with animal pelts. The parasite does not appear to complete its life cycle in humans (1,2). We present the first, to our knowledge, 2 published cases of Ophthalmomyiasis interna caused by H. tarandi in Canada. Furthermore, we present the first published use of Hypoderma spp. serologic testing to assist in the diagnosis of myiasis in humans.
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Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada
Emerging infectious diseases, 2008Co-Authors: Philippe R. S. Lagacé-wiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot flies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss.
Richard Leicht - One of the best experts on this subject based on the ideXlab platform.
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Interna Caused
2013Co-Authors: Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot fl ies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss. Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human ophthalmomyiasi
-
human Ophthalmomyiasis interna caused by hypoderma tarandi northern canada
Emerging Infectious Diseases, 2008Co-Authors: Philippe R S Lagacewiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human Ophthalmomyiasis by Hypoderma spp. is not known. Eyebrows and eyelashes have been suggested as possible targets for oviposition (3). Oviposition on human scalp hair has been achieved experimentally and could be the preferential site in humans (3). An alternative explanation is transfer of the larvae directly from the guard hairs of the caribou to the human eye or skin through close contact with animal pelts. The parasite does not appear to complete its life cycle in humans (1,2). We present the first, to our knowledge, 2 published cases of Ophthalmomyiasis interna caused by H. tarandi in Canada. Furthermore, we present the first published use of Hypoderma spp. serologic testing to assist in the diagnosis of myiasis in humans.
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Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada
Emerging infectious diseases, 2008Co-Authors: Philippe R. S. Lagacé-wiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot flies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss.
Stuart Skinner - One of the best experts on this subject based on the ideXlab platform.
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Interna Caused
2013Co-Authors: Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot fl ies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss. Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human ophthalmomyiasi
-
human Ophthalmomyiasis interna caused by hypoderma tarandi northern canada
Emerging Infectious Diseases, 2008Co-Authors: Philippe R S Lagacewiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human Ophthalmomyiasis by Hypoderma spp. is not known. Eyebrows and eyelashes have been suggested as possible targets for oviposition (3). Oviposition on human scalp hair has been achieved experimentally and could be the preferential site in humans (3). An alternative explanation is transfer of the larvae directly from the guard hairs of the caribou to the human eye or skin through close contact with animal pelts. The parasite does not appear to complete its life cycle in humans (1,2). We present the first, to our knowledge, 2 published cases of Ophthalmomyiasis interna caused by H. tarandi in Canada. Furthermore, we present the first published use of Hypoderma spp. serologic testing to assist in the diagnosis of myiasis in humans.
-
Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada
Emerging infectious diseases, 2008Co-Authors: Philippe R. S. Lagacé-wiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot flies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss.
Douglas D. Colwell - One of the best experts on this subject based on the ideXlab platform.
-
Interna Caused
2013Co-Authors: Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot fl ies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss. Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human ophthalmomyiasi
-
human Ophthalmomyiasis interna caused by hypoderma tarandi northern canada
Emerging Infectious Diseases, 2008Co-Authors: Philippe R S Lagacewiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Ophthalmomyiasis interna is invasion of the globe by larvae of any species of oestrid flies; Ophthalmomyiasis externa involves only the external ocular structures (1). Dermatobia hominis, endemic to tropical or subtropical areas, and Oestrus ovis (sheep bot fly) cause most cases of Ophthalmomyiasis (2). Both typically cause Ophthalmomyiasis externa (2). Only 2 bot flies inhabit Nearctic circumpolar regions: the Caribou bot fly (Hypoderma tarandi) and the Caribou nasal bot fly (Cephenemyia trompe), a nonhuman pathogen (2). H. tarandi is a nonbiting fly whose obligate endoparasitic larvae typically affect caribou throughout their circumpolar range (2,3). From late June to early September. the fly lays eggs directly on the guard hairs of the caribou (2,3). Once deposited, eggs hatch into larvae that penetrate skin (3). They move subcutaneously to reach the animal’s dorsal region, where they cut breathing holes and are encased within granulomatous cysts, termed warbles. There they develop for 9–11 months; in May or June of the following year, they leave the animal and pupate on the ground (3). Mated adult females are capable of long flights (≈900 km) in search of suitable hosts (3). Infestations by H. tarandi in humans are rare but are likely underreported (4). Related species, H. bovis and H. lineatum, inhabit various regions of North America, Europe, and Asia and have also been implicated in human disease (2,5). A third species that affects cattle and yaks in China (H. sinense) is also responsible for human infestations (2). The pathophysiology of human Ophthalmomyiasis by Hypoderma spp. is not known. Eyebrows and eyelashes have been suggested as possible targets for oviposition (3). Oviposition on human scalp hair has been achieved experimentally and could be the preferential site in humans (3). An alternative explanation is transfer of the larvae directly from the guard hairs of the caribou to the human eye or skin through close contact with animal pelts. The parasite does not appear to complete its life cycle in humans (1,2). We present the first, to our knowledge, 2 published cases of Ophthalmomyiasis interna caused by H. tarandi in Canada. Furthermore, we present the first published use of Hypoderma spp. serologic testing to assist in the diagnosis of myiasis in humans.
-
Human Ophthalmomyiasis Interna Caused by Hypoderma tarandi, Northern Canada
Emerging infectious diseases, 2008Co-Authors: Philippe R. S. Lagacé-wiens, Ravi I Dookeran, Richard Leicht, Stuart Skinner, Douglas D. Colwell, Terry D GallowayAbstract:Human myiasis caused by bot flies of nonhuman animals is rare but may be increasing. The treatment of choice is laser photocoagulation or vitrectomy with larva removal and intraocular steroids. Ophthalmomyiasis caused by Hypoderma spp. should be recognized as a potentially reversible cause of vision loss.