About: Infectivity of Cryptosporidium parvum oocysts is retained upon intestinal passage through a migratory water‐fowl species (Canada goose, Branta canadensis)

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About: Infectivity of Cryptosporidium parvum oocysts is retained upon intestinal passage through a migratory water‐fowl species (Canada goose, Branta canadensis) Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Infectivity of Cryptosporidium parvum oocysts is retained upon intestinal passage through a migratory water‐fowl species (Canada goose, Branta canadensis)
Creator	Hopkins, Johns Cranfield2, Michael Fayer4, Ronald Goodale', Holly Graczyk, Thaddeus Graczyklr2, Thaddeus Trout4, James
Source	PMC
abstract	Summary Five Cryptosporidium‐free Canada geese (Branta canadensis) were individually orally dosed with 3–5 × 10(6) Cryptosporidium parvum oocysts infectious to neonatal BALB/c mice. After intestinal passage, inoculum‐derived oocysts extracted from goose faeces established severe infection in 14 neonatal BALB/c mice (inoculum dose 2.5 × 10(5)/mouse). The inoculum‐derived oocysts were detected in goose faeces up to 9 days post‐inoculation (PI); the number of intact oocysts and oocyst shells shed during the first 3 days PI was significantly higher than for the remaining 6 days PI (P<0.01). Based on acid‐fast stained air‐dried direct wet smears, 62% of the oocysts in goose faeces were intact (oocyst shells constituted 38%) and conformed to morphological features of viable and infectious inoculum oocysts. The fluorescence scores of the inoculated oocysts, obtained by use of the MERIFLUOR test, were identical to those obtained for the faeces‐recovered oocysts (majority 3 + to 4 +). The dynamics of oocyst shedding showed that overall, the birds released a significantly higher number of intact oocysts than oocyst shells (P<0.01) Retention of the viability and infectivity of C. parvum oocysts following intestinal passage through a migratory water‐fowl species has serious epidemiological implications. Water‐fowl can serve as mechanical vectors for the water‐borne oocysts and can contaminate surface waters with C. parvum. As the concentration of Cryptosporidium oocysts in source waters is attributable to water‐shed management practices, water‐shed protection programme officials should consider water‐fowl as a potential factor enhancing contamination of the source water with Cryptosporidium.
has issue date	2007-08-01(xsd:dateTime)
bibo:doi	10.1111/j.1365-3156.1997.tb00149.x
bibo:pmid	9171842
has license	no-cc
sha1sum (hex)	97c1bb22dcda8bba07a0e0566c706490452f899e
schema:url	https://doi.org/10.1111/j.1365-3156.1997.tb00149.x
resource representing a document's title	Infectivity of Cryptosporidium parvum oocysts is retained upon intestinal passage through a migratory water‐fowl species (Canada goose, Branta canadensis)
has PubMed Central identifier	PMC7169778
has PubMed identifier	9171842
schema:publication	Trop Med Int Health
resource representing a document's body	covid:97c1bb22dcda8bba07a0e0566c706490452f899e#body_text
is schema:about of	named entity 'direct' named entity 'Five' named entity 'faeces' named entity 'Canada goose' named entity 'PROGRAMME' named entity 'VECTORS' named entity 'inoculum' named entity 'enhancing' named entity 'acid-fast' named entity 'Retention' named entity 'morphological' named entity 'oocysts' named entity 'waters' named entity 'scores' named entity 'oocysts' named entity 'dose' named entity 'stained' named entity 'water-shed' named entity 'viability' named entity 'infectivity' named entity 'oocysts' named entity 'days' named entity 'majority' named entity 'number' named entity 'shells' named entity 'International Health' named entity 'Cryptosporidium parvum' named entity 'oocyst' named entity 'vectors' named entity 'inoculum' named entity 'oocysts' named entity 'water-shed' named entity 'Cryptosporidium' named entity 'Cryptosporidium' named entity 'oocysts' named entity 'C. parvum' named entity 'neonatal' named entity 'morphological features' named entity 'oocysts' named entity 'mice' named entity 'oocysts' named entity 'infection' named entity 'geese' named entity 'water treatment facilities' named entity 'pathogens' named entity 'oocysts' named entity 'oocysts' named entity 'vectors' named entity 'oocysts' named entity 'antibody' named entity 'water disinfection' named entity 'Water-shed' named entity 'oocyst' named entity 'fluorescence' named entity 'inoculum' named entity 'oocysts' named entity 'oocysts' named entity 'propidium iodide' named entity 'infectivity' named entity 'oocysts' named entity 'Cryptosporidium' named entity 'geese' named entity 'Faecal' named entity 'mice' named entity 'oocyst' named entity 'oocysts' named entity 'oocyst' named entity 'faeces' named entity 'oocysts' named entity 'mice' named entity 't=1' named entity 'Holstein calves' named entity 'water-borne' named entity 'cryptosporidiosis' named entity 'United States'

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