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A Review on Parasitic Castration in Veterinary Parasitology
Journal of Entomology and Zoology Studies 2018; 6(1): 635-639 E-ISSN: 2320-7078 P-ISSN: 2349-6800 A review on parasitic castration in veterinary JEZS 2018; 6(1): 635-639 © 2018 JEZS parasitology Received: 27-11-2017 Accepted: 28-12-2017 S Sivajothi S Sivajothi and B Sudhakara Reddy Assistant Professor, Department of Veterinary Abstract Parasitology, College of Veterinary Science, Proddatur, Internal and external parasites are the most common organisms present in the different animals including Sri Venkateswara Veterinary humans. Some of the parasites are specific to individual species while others may be transmissible to University, Andhra Pradesh humans as zoonotic in nature. Impairment of the health condition of the animals leads to huge economic India loss interns of productivity and reproduction. Parasitic diseases in livestock can be controlled by geographical location, type of host and their manage mental practices. Conventional methods of B Sudhakara Reddy controlling parasites use synthetic chemotherapeutic drugs. In a safe manner, control of the animal Assistant Professor, parasites can be done by the biological control which means maintenance of natural enemies which Faculty of Veterinary Medicine, maintain a parasitic population at the lower level. Recently, parasitic castration has a role in the control Department of Veterinary of the parasitic diseases. In this, with help of different parasites, reproduction of the other parasites which Clinical Complex, College of are harmful to the animals can be reduced. This would be a case of direct parasitic castration by feeding Veterinary Science, Proddatur, on gonads of the hosts or indirectly, diverting the host energy from gonad development. -
Morphology of the Male Reproductive Tract in the Water Scavenger Beetle Tropisternus Collaris Fabricius, 1775 (Coleoptera: Hydrophilidae)
Revista Brasileira de Entomologia 65(2):e20210012, 2021 Morphology of the male reproductive tract in the water scavenger beetle Tropisternus collaris Fabricius, 1775 (Coleoptera: Hydrophilidae) Vinícius Albano Araújo1* , Igor Luiz Araújo Munhoz2, José Eduardo Serrão3 1Universidade Federal do Rio de Janeiro, Instituto de Biodiversidade e Sustentabilidade (NUPEM), Macaé, RJ, Brasil. 2Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil. 3Universidade Federal de Viçosa, Departamento de Biologia Geral, Viçosa, MG, Brasil. ARTICLE INFO ABSTRACT Article history: Members of the Hydrophilidae, one of the largest families of aquatic insects, are potential models for the Received 07 February 2021 biomonitoring of freshwater habitats and global climate change. In this study, we describe the morphology of Accepted 19 April 2021 the male reproductive tract in the water scavenger beetle Tropisternus collaris. The reproductive tract in sexually Available online 12 May 2021 mature males comprised a pair of testes, each with at least 30 follicles, vasa efferentia, vasa deferentia, seminal Associate Editor: Marcela Monné vesicles, two pairs of accessory glands (a bean-shaped pair and a tubular pair with a forked end), and an ejaculatory duct. Characters such as the number of testicular follicles and accessory glands, as well as their shape, origin, and type of secretion, differ between Coleoptera taxa and have potential to help elucidate reproductive strategies and Keywords: the evolutionary history of the group. Accessory glands Hydrophilid Polyphaga Reproductive system Introduction Coleoptera is the most diverse group of insects in the current fauna, The evolutionary history of Coleoptera diversity (Lawrence et al., with about 400,000 described species and still thousands of new species 1995; Lawrence, 2016) has been grounded in phylogenies with waiting to be discovered (Slipinski et al., 2011; Kundrata et al., 2019). -
Trichurispora Wellgundis Ng, N
Comp. Parasitol. 75(1), 2008, pp. 82–91 Trichurispora wellgundis n. g., n. sp. (Apicomplexa: Eugregarinida: Hirmocystidae) Parasitizing Adult Water Scavenger Beetles, Tropisternus collaris (Coleoptera: Hydrophilidae) in the Texas Big Thicket 1,3 2 2 R. E. CLOPTON, T. J. COOK, AND J. L. COOK 1 Department of Natural Science, Peru State College, Peru, Nebraska, U.S.A. and 2 Department of Biological Sciences, Sam Houston State University, Huntsville, Texas 77341-2166, U.S.A. ABSTRACT: Trichurispora wellgundis n. g., n. sp. (Apicomplexa: Eugregarinida: Hirmocystidae) is described from the adults of the water scavenger beetle Tropisternus collaris (Coleoptera: Hydrophilidae) collected from B A Steinhagen Lake in the Cherokee Unit of the Big Thicket National Preserve, Tyler County, Texas, U.S.A. Trichurispora is distinguished from known genera of Hirmocystidae by a distinct ‘‘trichurisiform’’ oocyst that is hesperidiform in outline, comprising a fusiform oocyst with shallowly ovoid terminal knobs or caps. Oocyst residua are present but confined to a central fusiform residuum vacuole. Adult and larval hydrophilid beetles represent distinctly different opportunities for parasite colonization and diversification. Gregarines have been reported from both adult and larval hydrophilid beetles, but no species and no genus is reported from both adult and larval hosts. In fact, gregarine taxic richness is often more disparate between adult and larval beetles of the same species than between host beetle species. This is the first report of a septate gregarine from an adult hydrophilid beetle in the Nearctic. KEY WORDS: Apicomplexa, Eugregarinida, Hirmocystidae, Gregarine, Trichurispora wellgundis n. g., n. sp., Didymophyes, Enterocystis hydrophili incertae sedis, Stylocephalus brevirostris incertae sedis, Coleoptera, Hydrophilidae, Tropisternus collaris, Texas, Big Thicket, U.S.A. -
Infection by Parorchis Acanthus (Trematoda) Decreases Grazing by the Keystone Gastropod, Littoraria Irrorata
Infection by Parorchis acanthus (Trematoda) decreases grazing by the keystone gastropod, Littoraria irrorata Joseph P. Morton Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University, Beaufort, NC, United States of America ABSTRACT Parasites are well-known to alter the behavior of their hosts, but there is still a paucity of knowledge about how parasites modify the behavior of many ecologically influential host species. I studied the keystone grazer, the salt marsh periwinkle (Littoraria irrorata), to determine the influence of infection by the digenetic trematode, Parorchis acanthus, on its grazing behavior. Comparative laboratory grazing studies of wild- collected and experimentally infected snails revealed that Parorchis decreased grazing on live Spartina by more than 80%. Because of the large ecological influence of Littoraria in southern U.S. marshes, parasite modification of snail grazing may have ramifications for marsh ecosystem stability if parasite prevalence is sufficiently high. Subjects Animal Behavior, Ecology, Marine Biology, Parasitology Keywords Grazing, Parasitism, Salt marsh, Behavior modification, Trematode INTRODUCTION A broad body of research demonstrates the ability of parasites to induce powerful changes in the behavior of their hosts (Holmes & Bethel, 1972; Dobson, 1988; Moore & Gotelli, 1990; Lafferty & Morris, 1996; Moore, 2002; Toscano, Newsome & Griffen, 2014; Soghigian, Submitted 25 April 2017 Accepted 6 March 2018 Valsdottir & Livdahl, 2017). These changes may be adaptive for the parasite because Published 27 March 2018 behavioral modification often facilities transmission to the next host species in its life Corresponding author cycle, an adaptive response of the host species, or a non-adaptive byproduct of parasitic Joseph P. Morton, infection (Lafferty, 1999; Levri, 1999; Moore, 2002). -
Digenea, Microphallidae) and Relative Merits of Two-Host Microphallid Life Cycles
Parasitology Research (2018) 117:1051–1068 https://doi.org/10.1007/s00436-018-5782-1 ORIGINAL PAPER Microphallus ochotensis sp. nov. (Digenea, Microphallidae) and relative merits of two-host microphallid life cycles Kirill V. Galaktionov1,2 & Isabel Blasco-Costa3 Received: 21 July 2017 /Accepted: 23 January 2018 /Published online: 3 February 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract A new digenean species, Microphallus ochotensis sp. nov., was described from the intestine of Pacific eiders (Somateria mollissima v-nigrum) from the north of the Sea of Okhotsk. It differs from other microphallids in the structure of the metraterm, which consists of two distinct parts: a sac with spicule-like structures and a short muscular duct opening into the genital atrium. Mi. ochotensis forms a monophyletic clade together with other congeneric species in phylograms derived from the 28S and ITS2 rRNA gene. Its dixenous life cycle was elucidated with the use of the same molecular markers. Encysted metacercariae infective for birds develop inside sporocysts in the first intermediate host, an intertidal mollusc Falsicingula kurilensis. The morphology of metacercariae and adults was described with an emphasis on the structure of terminal genitalia. Considering that Falsicingula occurs at the Pacific coast of North America and that the Pacific eider is capable of trans-continental flights, the distribution of Mi. ochotensis might span the Pacific coast of Alaska and Canada. The range of its final hosts may presumably include other benthos- feeding marine ducks as well as shorebirds. We suggest that a broad occurrence of two-host life cycles in microphallids is associated with parasitism in birds migrating along sea coasts. -
Larval Stages of Digenetic Flukes and Their Molluscan
STUDIES ON THE INTERACTIONS BETWEEN LARVAL STAGES OF DIGENETIC FLUKES AND THEIR MOLLUSCAN HOSTS. MICHAEL ANTONY PRICE SUBMITTED IN ACCORDANCE WITH THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY THE UNIVERSITY OF LEEDS DEPARTMENT OF PURE AND APPLIED ZOOLOGY. MARCH 1984 Snails of the species Thais (Nucella) lapillus (L) were collected from Scarborough South Bay, and Robin Hoods Bay, North Yorkshire. The presence of the rediae of Parorchia acanthus. NICOLL (Digenea: PHILOPHTHALMIDAE) in T-,. lapillus individuals was previously associated with abnormal shell growth by Feare (1970a). His work has been extended to provide more conclusive evidence of parasitic gigantism in T, larAllus infested with P-,. acanthus-. - The energy increment and soft tissue mass increase associated with shell growth has been calculated for a sample of infested T, lapillus individuals. As reported by Cooley (1958) and Feare (1969) infestation with P_.. acanthus rediae progressively destroys the host gonad. The resultant reproductive saving was estimated for non-infested male and female T, lapillus from Robin Hoods Bay in 1981 and the energy values obtained were compared with estimates of the average energy loss from infested M., laDillus as a result of cercarial production and redial growth. The proportion of the whole body dry mass of infested M, lapillus. individuals contributed by the redial population was generally similar to the gonadal proportion of non-infested femalest but did not follow the same seasonal cycle. The digestive gland of infested dogwhelks was proportionally reduced from that of non-infested females in August only. The growth of redial populations within the hosts through the summer is suggested as a possible cause of host gigantism. -
Four Marine Digenean Parasites of Austrolittorina Spp. (Gastropoda: Littorinidae) in New Zealand: Morphological and Molecular Data
Syst Parasitol (2014) 89:133–152 DOI 10.1007/s11230-014-9515-2 Four marine digenean parasites of Austrolittorina spp. (Gastropoda: Littorinidae) in New Zealand: morphological and molecular data Katie O’Dwyer • Isabel Blasco-Costa • Robert Poulin • Anna Falty´nkova´ Received: 1 July 2014 / Accepted: 4 August 2014 Ó Springer Science+Business Media Dordrecht 2014 Abstract Littorinid snails are one particular group obtained. Phylogenetic analyses were carried out at of gastropods identified as important intermediate the superfamily level and along with the morpholog- hosts for a wide range of digenean parasite species, at ical data were used to infer the generic affiliation of least throughout the Northern Hemisphere. However the species. nothing is known of trematode species infecting these snails in the Southern Hemisphere. This study is the first attempt at cataloguing the digenean parasites Introduction infecting littorinids in New Zealand. Examination of over 5,000 individuals of two species of the genus Digenean trematode parasites typically infect a Austrolittorina Rosewater, A. cincta Quoy & Gaim- gastropod as the first intermediate host in their ard and A. antipodum Philippi, from intertidal rocky complex life-cycles. They are common in the marine shores, revealed infections with four digenean species environment, particularly in the intertidal zone representative of a diverse range of families: Philo- (Mouritsen & Poulin, 2002). One abundant group of phthalmidae Looss, 1899, Notocotylidae Lu¨he, 1909, gastropods in the marine intertidal environment is the Renicolidae Dollfus, 1939 and Microphallidae Ward, littorinids (i.e. periwinkles), which are characteristic 1901. This paper provides detailed morphological organisms of the high intertidal or littoral zone and descriptions of the cercariae and intramolluscan have a global distribution (Davies & Williams, 1998). -
Taxonomy of the Order Bunyavirales: Update 2019
Archives of Virology (2019) 164:1949–1965 https://doi.org/10.1007/s00705-019-04253-6 VIROLOGY DIVISION NEWS Taxonomy of the order Bunyavirales: update 2019 Abulikemu Abudurexiti1 · Scott Adkins2 · Daniela Alioto3 · Sergey V. Alkhovsky4 · Tatjana Avšič‑Županc5 · Matthew J. Ballinger6 · Dennis A. Bente7 · Martin Beer8 · Éric Bergeron9 · Carol D. Blair10 · Thomas Briese11 · Michael J. Buchmeier12 · Felicity J. Burt13 · Charles H. Calisher10 · Chénchén Cháng14 · Rémi N. Charrel15 · Il Ryong Choi16 · J. Christopher S. Clegg17 · Juan Carlos de la Torre18 · Xavier de Lamballerie15 · Fēi Dèng19 · Francesco Di Serio20 · Michele Digiaro21 · Michael A. Drebot22 · Xiaˇoméi Duàn14 · Hideki Ebihara23 · Toufc Elbeaino21 · Koray Ergünay24 · Charles F. Fulhorst7 · Aura R. Garrison25 · George Fú Gāo26 · Jean‑Paul J. Gonzalez27 · Martin H. Groschup28 · Stephan Günther29 · Anne‑Lise Haenni30 · Roy A. Hall31 · Jussi Hepojoki32,33 · Roger Hewson34 · Zhìhóng Hú19 · Holly R. Hughes35 · Miranda Gilda Jonson36 · Sandra Junglen37,38 · Boris Klempa39 · Jonas Klingström40 · Chūn Kòu14 · Lies Laenen41,42 · Amy J. Lambert35 · Stanley A. Langevin43 · Dan Liu44 · Igor S. Lukashevich45 · Tāo Luò1 · Chuánwèi Lüˇ 19 · Piet Maes41 · William Marciel de Souza46 · Marco Marklewitz37,38 · Giovanni P. Martelli47 · Keita Matsuno48,49 · Nicole Mielke‑Ehret50 · Maria Minutolo3 · Ali Mirazimi51 · Abulimiti Moming14 · Hans‑Peter Mühlbach50 · Rayapati Naidu52 · Beatriz Navarro20 · Márcio Roberto Teixeira Nunes53 · Gustavo Palacios25 · Anna Papa54 · Alex Pauvolid‑Corrêa55 · Janusz T. Pawęska56,57 · Jié Qiáo19 · Sheli R. Radoshitzky25 · Renato O. Resende58 · Víctor Romanowski59 · Amadou Alpha Sall60 · Maria S. Salvato61 · Takahide Sasaya62 · Shū Shěn19 · Xiǎohóng Shí63 · Yukio Shirako64 · Peter Simmonds65 · Manuela Sironi66 · Jin‑Won Song67 · Jessica R. Spengler9 · Mark D. Stenglein68 · Zhèngyuán Sū19 · Sùróng Sūn14 · Shuāng Táng19 · Massimo Turina69 · Bó Wáng19 · Chéng Wáng1 · Huálín Wáng19 · Jūn Wáng19 · Tàiyún Wèi70 · Anna E. -
Notification Requirements
Protocol for Public Health Agencies to Notify CDC about the Occurrence of Nationally Notifiable Conditions, 2021 Categorized by Notification Timeliness IMMEDIATELY NOTIFIABLE, EXTREMELY URGENT: Call the CDC ROUTINELY NOTIFIABLE: Submit electronic case notification Emergency Operations Center (EOC) at 770.488.7100 within 4 hours of within the next reporting cycle. a case meeting the notification criteria, followed by submission of an electronic case notification to CDC by the next business day. IMMEDIATELY NOTIFIABLE, URGENT: Call the CDC EOC at 770.488.7100 Approved by CSTE: June 2019 within 24 hours of a case meeting the notification criteria, followed by Interim Update Approved by CSTE: April 5, 2020 submission of an electronic case notification in next regularly scheduled Implemented: January 1, 2020 electronic transmission. Updated: May 28, 2020 Condition Notification Timeliness Cases Requiring Notification Anthrax Immediately notifiable, Confirmed and probable cases - Source of infection not recognized extremely urgent - Recognized BT exposure/potential mass exposure - Serious illness of naturally-occurring anthrax Botulism Immediately notifiable, All cases prior to classification - Foodborne (except endemic to Alaska) extremely urgent - Intentional or suspected intentional release - Infant botulism (clusters or outbreaks) - Cases of unknown etiology/not meeting standard notification criteria Page 1 of 5 Plague Immediately notifiable, All cases prior to classification - Suspected intentional release extremely urgent Paralytic poliomyelitis -
2018 DSHS Arbovirus Activity
Health and Human Texas Department of State Services Health Services Arbovirus Activity in Texas 2018 Surveillance Report August 2019 Texas Department of State Health Services Zoonosis Control Branch Overview Viruses transmitted by mosquitoes are referred to as arthropod-borne viruses or arboviruses. Arboviruses reported in Texas may include California (CAL) serogroup viruses, chikungunya virus (CHIKV), dengue virus (DENV), eastern equine encephalitis virus (EEEV), Saint Louis encephalitis virus (SLEV), western equine encephalitis virus (WEEV), West Nile virus (WNV), and Zika virus (ZIKV), many of which are endemic or enzootic in the state. In 2018, reported human arboviral disease cases were attributed to WNV (82%), DENV (11%), CHIKV (4%), ZIKV (2%), and CAL (1%) (Table 1). In addition, there were two cases reported as arbovirus disease cases which could not be diagnostically or epidemiologically differentiated between DENV and ZIKV. Animal infections or disease caused by WNV and SLEV were also reported during 2018. Local transmission of DENV, SLEV, and WNV was documented during 2018 (Figure 1). No reports of EEEV or WEEV were received during 2018. Table 1. Year-End Arbovirus Activity Summary, Texas, 2018 Positive Human* Arbovirus Mosquito Avian Equine TOTAL TOTAL Fever Neuroinvasive Severe Deaths PVD‡ Pools (Human) CAL 1 1 1 CHIK 7 7 7 DEN 20 20 20 SLE 2 0 2 WN 1,021 6 19 38 108 146 11 24 1,192 Zika** 4 4 TOTAL 1,023 6 19 65 109 0 178 11 24 1,226 CAL - California serogroup includes California encephalitis, Jamestown Canyon, Keystone, La Crosse, Snowshoe hare and Trivittatus viruses CHIK - Chikungunya DEN - Dengue SLE - Saint Louis encephalitis WN - West Nile ‡PVD - Presumptive viremic blood donors are people who had no symptoms at the time of donating blood through a blood collection agency, but whose blood tested positive when screened for the presence of West Nile virus or Zika virus. -
Protocol for Public Health Agencies to Notify CDC About the Occurrence of Nationally Notifiable Conditions, 2018 Categorized by Notification Timeliness
Protocol for Public Health Agencies to Notify CDC about the Occurrence of Nationally Notifiable Conditions, 2018 Categorized by Notification Timeliness IMMEDIATELY NOTIFIABLE, EXTREMELY URGENT: Call the CDC ROUTINELY NOTIFIABLE: Submit electronic case notification within Emergency Operations Center (EOC) at 770.488.7100 within 4 hours of a the next reporting cycle. case meeting the notification criteria, followed by submission of an electronic case notification to CDC by the next business day. IMMEDIATELY NOTIFIABLE, URGENT: Call the CDC EOC at 770.488.7100 within 24 hours of a case meeting the notification criteria, followed by Approved by CSTE: June 2017 submission of an electronic case notification in next regularly scheduled Implemented: January 1, 2018 electronic transmission. Updated: November 16, 2017 Condition Notification Timeliness Cases Requiring Notification Anthrax Immediately notifiable, Confirmed and probable cases - Source of infection not recognized extremely urgent - Recognized BT exposure/potential mass exposure - Serious illness of naturally-occurring anthrax Botulism Immediately notifiable, All cases prior to classification - Foodborne (except endemic to Alaska) extremely urgent - Intentional or suspected intentional release - Infant botulism (clusters or outbreaks) - Cases of unknown etiology/not meeting standard notification criteria Plague Immediately notifiable, All cases prior to classification - Suspected intentional release extremely urgent Paralytic poliomyelitis Immediately notifiable, Confirmed cases extremely -
Taxonomy of the Family Arenaviridae and the Order Bunyavirales: Update 2018
Archives of Virology https://doi.org/10.1007/s00705-018-3843-5 VIROLOGY DIVISION NEWS Taxonomy of the family Arenaviridae and the order Bunyavirales: update 2018 Piet Maes1 · Sergey V. Alkhovsky2 · Yīmíng Bào3 · Martin Beer4 · Monica Birkhead5 · Thomas Briese6 · Michael J. Buchmeier7 · Charles H. Calisher8 · Rémi N. Charrel9 · Il Ryong Choi10 · Christopher S. Clegg11 · Juan Carlos de la Torre12 · Eric Delwart13,14 · Joseph L. DeRisi15 · Patrick L. Di Bello16 · Francesco Di Serio17 · Michele Digiaro18 · Valerian V. Dolja19 · Christian Drosten20,21,22 · Tobiasz Z. Druciarek16 · Jiang Du23 · Hideki Ebihara24 · Toufc Elbeaino18 · Rose C. Gergerich16 · Amethyst N. Gillis25 · Jean‑Paul J. Gonzalez26 · Anne‑Lise Haenni27 · Jussi Hepojoki28,29 · Udo Hetzel29,30 · Thiện Hồ16 · Ní Hóng31 · Rakesh K. Jain32 · Petrus Jansen van Vuren5,33 · Qi Jin34,35 · Miranda Gilda Jonson36 · Sandra Junglen20,22 · Karen E. Keller37 · Alan Kemp5 · Anja Kipar29,30 · Nikola O. Kondov13 · Eugene V. Koonin38 · Richard Kormelink39 · Yegor Korzyukov28 · Mart Krupovic40 · Amy J. Lambert41 · Alma G. Laney42 · Matthew LeBreton43 · Igor S. Lukashevich44 · Marco Marklewitz20,22 · Wanda Markotter5,33 · Giovanni P. Martelli45 · Robert R. Martin37 · Nicole Mielke‑Ehret46 · Hans‑Peter Mühlbach46 · Beatriz Navarro17 · Terry Fei Fan Ng14 · Márcio Roberto Teixeira Nunes47,48 · Gustavo Palacios49 · Janusz T. Pawęska5,33 · Clarence J. Peters50 · Alexander Plyusnin28 · Sheli R. Radoshitzky49 · Víctor Romanowski51 · Pertteli Salmenperä28,52 · Maria S. Salvato53 · Hélène Sanfaçon54 · Takahide Sasaya55 · Connie Schmaljohn49 · Bradley S. Schneider25 · Yukio Shirako56 · Stuart Siddell57 · Tarja A. Sironen28 · Mark D. Stenglein58 · Nadia Storm5 · Harikishan Sudini59 · Robert B. Tesh48 · Ioannis E. Tzanetakis16 · Mangala Uppala59 · Olli Vapalahti28,30,60 · Nikos Vasilakis48 · Peter J. Walker61 · Guópíng Wáng31 · Lìpíng Wáng31 · Yànxiăng Wáng31 · Tàiyún Wèi62 · Michael R.