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Non-falciparum malaria in Dakar: a confirmed case of Plasmodium ovale wallikeri infection

Overview of attention for article published in Malaria Journal, August 2016
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  • Above-average Attention Score compared to outputs of the same age (59th percentile)
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Mentioned by

4 tweeters


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37 Mendeley
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Non-falciparum malaria in Dakar: a confirmed case of Plasmodium ovale wallikeri infection
Published in
Malaria Journal, August 2016
DOI 10.1186/s12936-016-1485-1
Pubmed ID

Mamadou A. Diallo, Aida S. Badiane, Khadim Diongue, Awa Deme, Naomi W. Lucchi, Marie Gaye, Tolla Ndiaye, Mouhamadou Ndiaye, Louise K. Sene, Abdoulaye Diop, Amy Gaye, Yaye D. Ndiaye, Diama Samb, Mamadou S. Yade, Omar Ndir, Venkatachalam Udhayakumar, Daouda Ndiaye


Plasmodium ovale is rarely described in Senegal. A case of clinical malaria due to P. ovale wallikeri in West Central of Senegal is reported. A 34-year-old male baker in Dakar, with no significant previous medical history, was admitted to a health clinic with fever and vomiting. Fever had been lasting for 4 days with peaks every 48 h. As monospecific Plasmodium falciparum HRP-2 RDT was negative, he was treated with antibiotics. However, owing to persisting symptoms, he was referred to the emergency unit of the Youssou Mbargane Diop Hospital, Dakar, Senegal. Clinical examination found impaired general condition. All other physical examinations were normal. Laboratory tests showed anaemia (haemoglobin 11.4 g/dl), severe thrombocytopaenia (platelets 30 × 10(9)/mm(3)), leukopenia (3650/mm(3)), lymphocytopenia (650/mm(3)). Renal function was normal as indicated by creatininaemia and uraemia (11 mg/l and 0.25 g/l, respectively) and liver enzymes were slightly elevated (aspartate aminotransferase 77 UI/l and alanine aminotransferase 82 UI/l). Blood smear evaluations in Parasitology Laboratory of Aristide Le Dantec Hospital showed malaria parasites of the species P. ovale with a 0.08 % parasitaemia. Molecular confirmation was done by real time PCR targeting the 18S rRNA gene. The P. ovale infection was further analysed to species level targeting the potra gene and was identified as P. ovale wallikeri. According to the hospital's malaria treatment guidelines for severe malaria, treatment consisted of intravenous quinine at hour 0 (start of treatment) and 24 h after initial treatment, followed by artemether-lumefantrine 24 h later. A negative microscopy was noted on day 3 post-treatment and the patient reported no further symptoms. Malaria due to non-falciparum species is probably underestimated in Senegal. RDTs specific to non-falciparum species and/or pan specific RDTs should be included as tools of diagnosis to fight against malaria in Senegal. In addition, a field-deployable molecular tool such as the loop-mediated isothermal amplification can be considered as an additional useful tool to detect low malaria parasite infections and for speciation. In addition, national malaria control policies should consider other non-falciparum species in treatment guidelines, including the provision of primaquine for the treatment of relapsing parasites.

Twitter Demographics

The data shown below were collected from the profiles of 4 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 37 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Senegal 1 3%
Unknown 36 97%

Demographic breakdown

Readers by professional status Count As %
Researcher 6 16%
Student > Ph. D. Student 5 14%
Other 4 11%
Student > Bachelor 4 11%
Student > Master 4 11%
Other 9 24%
Unknown 5 14%
Readers by discipline Count As %
Medicine and Dentistry 7 19%
Agricultural and Biological Sciences 7 19%
Biochemistry, Genetics and Molecular Biology 5 14%
Social Sciences 2 5%
Environmental Science 1 3%
Other 8 22%
Unknown 7 19%

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 June 2017.
All research outputs
of 11,410,025 outputs
Outputs from Malaria Journal
of 3,367 outputs
Outputs of similar age
of 260,889 outputs
Outputs of similar age from Malaria Journal
of 142 outputs
Altmetric has tracked 11,410,025 research outputs across all sources so far. This one is in the 46th percentile – i.e., 46% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,367 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.2. This one is in the 44th percentile – i.e., 44% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 260,889 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 59% of its contemporaries.
We're also able to compare this research output to 142 others from the same source and published within six weeks on either side of this one. This one is in the 47th percentile – i.e., 47% of its contemporaries scored the same or lower than it.