ArticleJournal of clinical microbiology1997
Ehrlichia phagocytophila genogroup rickettsiae in ixodid ticks from California collected in 1995 and 1996.
Article in Journal of clinical microbiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed, 72 citations in OpenAlex.
- Seasonal Dynamics of Ticks and Tick-Borne Pathogens in Republic of Korea.Pathogens (Basel, Switzerland) · 2024Article
- History of the geographic distribution of the western blacklegged tick, Ixodes pacificus, in the United States.Ticks and tick-borne diseases · 2024Review
- Reported County-Level Distribution of the American Dog Tick (Acari: Ixodidae) in the Contiguous United States.Journal of medical entomology · 2020Article
- Epidemiology and Genetic Diversity of Anaplasma phagocytophilum in the San Francisco Bay Area, California.The American journal of tropical medicine and hygiene · 2016Article
- Anaplasma phagocytophilum--a widespread multi-host pathogen with highly adaptive strategies.Frontiers in cellular and infection microbiology · 2013Review
- Differences in prevalence of Borrelia burgdorferi and Anaplasma spp. infection among host-seeking Dermacentor occidentalis, Ixodes pacificus, and Ornithodoros coriaceus ticks in northwestern California.Ticks and tick-borne diseases · 2010Article
- Co-phylogenetic analysis of Anaplasma phagocytophilum and its vectors, Ixodes spp. ticks.Experimental & applied acarology · 2008Article
- Genetic variants of Anaplasma phagocytophilum infecting dogs in Western Washington State.Journal of clinical microbiology · 2005Article
- Molecular typing of the etiologic agent of human granulocytic ehrlichiosis.Journal of clinical microbiology · 2001Article
- Granulocytic Ehrlichiae in Ixodes persulcatus ticks from an area in China where Lyme disease is endemic.Journal of clinical microbiology · 2000Article
- Identification of Ehrlichia chaffeensis by nested PCR in ticks from Southern China.Journal of clinical microbiology · 2000Article
- PCR detection of granulocytic ehrlichiae in Ixodes ricinus ticks and wild small mammals in western Switzerland.Journal of clinical microbiology · 2000Article
- Dusky-footed wood rats (Neotoma fuscipes) as reservoirs of granulocytic Ehrlichiae (Rickettsiales: Ehrlichieae) in northern California.Journal of clinical microbiology · 1999Article
- Evidence of the human granulocytic ehrlichiosis agent in Ixodes ricinus ticks in Switzerland.Journal of clinical microbiology · 1999Article
- Detection of Ehrlichia phagocytophila DNA in Ixodes ricinus ticks from areas in Switzerland where tick-borne fever is endemic.Journal of clinical microbiology · 1998Article
- Experimental transmission of Ehrlichia equi to horses through naturally infected ticks (Ixodes pacificus) from Northern California.Journal of clinical microbiology · 1998Article
- Immunodiagnosis of human granulocytic ehrlichiosis by using culture-derived human isolates.Journal of clinical microbiology · 1998Article
- Common and atypical presentations of Anaplasma phagocytophilum infection in equids with emphasis on neurologic and muscle disease.Journal of veterinary internal medicineArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A total of 1,246 ixodid ticks collected in 1995 and 1996 from seven California counties were examined for the presence of Ehrlichia phagocytophila genogroup rickettsiae by using a nested PCR technique. Of 1,112 adult Ixodes pacificus Cooley and Kohls ticks tested, nine pools, each containing five ticks, were positive (minimum percentage of ticks harboring detectable ehrlichiae, 0.8%). Positive ticks were limited to four of the seven counties (Sonoma, El Dorado, Santa Cruz, and Orange). In Santa Cruz County, three positive pools were identified at the home of an individual with prior confirmed human granulocytic ehrlichiosis. In El Dorado County, positive ticks were found at sites where cases of granulocytic ehrlichiosis in a horse and a llama had recently occurred. Among 47 nymphal I. pacificus ticks collected in Sonoma County, one positive pool was identified. Fifty-seven adult Dermacentor occidentalis Marx and 30 adult D. variabilis Say ticks, collected chiefly in southern California, were negative. These data, although preliminary, suggest that the prevalence of E. phagocytophila genogroup rickettsiae in ixodid ticks of California may be lower than in cognate vector populations (i.e., I. scapularis Say = I. dammini Spielman, Clifford, Piesman, and Corwin) in the eastern and midwestern United States.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.