Evaluation of Plasmodium vivax malaria recurrence in Brazil.

Abstract:

BACKGROUND:Control of vivax malaria in endemic areas requires management of recurrence. The Brazilian National Malaria Surveillance System (SIVEP-Malária) records every case of malaria in Brazil, but is not designed to differentiate between primary and recurrent infections. The aim of this study was to explore whether the information provided by SIVEP-Malária could be used to identify Plasmodium vivax recurrences, its risk factors and evaluate the effectiveness of short course primaquine (7-9 days: total dose 3-4.2 mg/kg) in preventing relapses. METHODS:In this observational retrospective cohort study, data matching of SIVEP-Malária records was undertaken using bloom filters to identify potential recurrences defined as microscopically-confirmed P. vivax episodes from the same individual occurring within a year. Generalized Estimation Equation (GEE) models were used to determine predictors of recurrence. Extended Cox-based conditional Prentice-Williams-Peterson models (PWP) models were used to evaluate time to recurrence. RESULTS:Between June 1, 2014 and May 31, 2015, 26,295 episodes fulfilled the criteria of potential recurrence among 154,970 reported malaria episodes. Age ≤ 3 years, being male, literate, not-indigenous and having domestic working activities were identified as risk factors for recurrence. There was no difference in time to recurrence or recurrence frequency between patients treated with 14-day or 7-9 day primaquine regimens (HR = 1.02, 0.96-1.09) and RR = 0.97 (0.90-1.04), respectively. The use of chloroquine alone was associated with a 1.43 (1.29-1.58, p < 0.0001) increased risk of P. vivax recurrence compared to patients who used chloroquine combined with short-course primaquine, the Brazilian standard of care. This was RR = 2.06 (1.48-2.86, p < 0.0001), RR = 1.90 (1.60-2.25, p = 0.0001) and RR = 1.14 (1.00-1.29, p = 0.05) for recurrences occurring between 3-28, 29-60 and > 60 days, respectively. PWP models showed that the time to recurrence was longer in recipients of both primaquine and artemisinin-based combination therapy (ACT) compared to patients treated with chloroquine alone or with concomitant primaquine, HR = 2.2 (1.62-2.99, p < 0.0001), HR = 1.27 (0.97-1.66, p = 0.08), respectively. CONCLUSION:Short course primaquine was as effective as 14-day regimens and associated with a halving of the risk and delay in time to recurrence of P. vivax infections in comparison to chloroquine alone. The study demonstrates the feasibility of using record linkage on routine surveillance data to identify potential P. vivax recurrences, associated risk factors and impact of treatment.

journal_name

Malar J

journal_title

Malaria journal

authors

Daher A,Silva JCAL,Stevens A,Marchesini P,Fontes CJ,Ter Kuile FO,Lalloo DG

doi

10.1186/s12936-019-2644-y

subject

Has Abstract

pub_date

2019-01-22 00:00:00

pages

18

issue

1

issn

1475-2875

pii

10.1186/s12936-019-2644-y

journal_volume

18

pub_type

杂志文章
  • Is Saglin a mosquito salivary gland receptor for Plasmodium falciparum?

    abstract:BACKGROUND:Saglin, a 100 kDa protein composed of two 50 kDa homodimers, is present in the salivary glands of Anopheles gambiae and has been considered an essential receptor for sporozoites (SPZ) of Plasmodium berghei and Plasmodium falciparum (Pf), allowing SPZ to recognize, bind to, and infect mosquito salivary glands...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-018-2634-5

    authors: O'Brochta DA,Alford R,Harrell R,Aluvihare C,Eappen AG,Li T,Chakravarty S,Sim BKL,Hoffman SL,Billingsley PF

    更新日期:2019-01-03 00:00:00

  • Forecasting malaria incidence based on monthly case reports and environmental factors in Karuzi, Burundi, 1997-2003.

    abstract:BACKGROUND:The objective of this work was to develop a model to predict malaria incidence in an area of unstable transmission by studying the association between environmental variables and disease dynamics. METHODS:The study was carried out in Karuzi, a province in the Burundi highlands, using time series of monthly ...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-6-129

    authors: Gomez-Elipe A,Otero A,van Herp M,Aguirre-Jaime A

    更新日期:2007-09-24 00:00:00

  • A minimal 3D model of mosquito flight behaviour around the human baited bed net.

    abstract:BACKGROUND:Advances in digitized video-tracking and behavioural analysis have enabled accurate recording and quantification of mosquito flight and host-seeking behaviours, facilitating development of individual (agent) based models at much finer spatial scales than previously possible. METHODS:Quantified behavioural p...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-020-03546-5

    authors: Jones J,Murray GPD,McCall PJ

    更新日期:2021-01-07 00:00:00

  • Effect of ingested human antibodies induced by RTS, S/AS01 malaria vaccination in children on Plasmodium falciparum oocyst formation and sporogony in mosquitoes.

    abstract:BACKGROUND:The circumsporozoite protein (CS protein) on the malaria parasites in mosquitoes plays an important role in sporogony in mosquitoes. The RTS,S/AS01 malaria vaccine candidate, which has shown significant efficacy against clinical malaria in a large Phase 3 trial, targets the Plasmodium falciparum CS protein, ...

    journal_title:Malaria journal

    pub_type: 杂志文章,多中心研究

    doi:10.1186/1475-2875-13-263

    authors: Miura K,Jongert E,Deng B,Zhou L,Lusingu JP,Drakeley CJ,Fay MP,Long CA,Vekemans J

    更新日期:2014-07-09 00:00:00

  • Mass testing and treatment for malaria in low transmission areas in Amhara Region, Ethiopia.

    abstract:BACKGROUND:In areas with ongoing malaria transmission, strategies to clear parasites from populations can reduce infection and transmission. The objective of this paper was to describe a malaria mass testing and treatment (MTAT) intervention implemented in six kebeles (villages) in Amhara Region, Ethiopia, at the begin...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-016-1333-3

    authors: Scott CA,Yeshiwondim AK,Serda B,Guinovart C,Tesfay BH,Agmas A,Zeleke MT,Guesses GS,Ayenew AL,Workie WM,Steketee RW,Earle D,Bezabih B,Getachew A

    更新日期:2016-06-02 00:00:00

  • System effectiveness of a targeted free mass distribution of long lasting insecticidal nets in Zanzibar, Tanzania.

    abstract:BACKGROUND:Insecticide-treated nets (ITN) and long-lasting insecticidal treated nets (LLIN) are important means of malaria prevention. Although there is consensus regarding their importance, there is uncertainty as to which delivery strategies are optimal for dispensing these life saving interventions. A targeted mass ...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-9-173

    authors: Beer N,Ali AS,de Savigny D,Al-Mafazy AW,Ramsan M,Abass AK,Omari RS,Björkman A,Källander K

    更新日期:2010-06-18 00:00:00

  • 'Some anti-malarials are too strong for your body, they will harm you.' Socio-cultural factors influencing pregnant women's adherence to anti-malarial treatment in rural Gambia.

    abstract:BACKGROUND:Despite declining prevalence of malaria in The Gambia, non-adherence to anti-malarial treatment still remains a challenge to control efforts. There is limited evidence on the socio-cultural factors that influence adherence to anti-malarial treatment in pregnancy. This study explored perceptions of malaria in...

    journal_title:Malaria journal

    pub_type: 杂志文章,随机对照试验

    doi:10.1186/s12936-016-1255-0

    authors: Jaiteh F,Dierickx S,Gryseels C,O'Neill S,D'Alessandro U,Scott S,Balen J,Grietens KP

    更新日期:2016-04-11 00:00:00

  • T1BT* structural study of an anti-plasmodial peptide through NMR and molecular dynamics.

    abstract:BACKGROUND:T1BT* is a peptide construct containing the T1 and B epitopes located in the 5' minor repeat and the 3' major repeat of the central repeat region of the Plasmodium falciparum circumsporozoite protein (CSP), respectively, and the universal T* epitope located in the C-terminus of the same protein. This peptide...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-12-104

    authors: Topchiy E,Armstrong GS,Boswell KI,Buchner GS,Kubelka J,Lehmann TE

    更新日期:2013-03-18 00:00:00

  • Statics and dynamics of malaria infection in Anopheles mosquitoes.

    abstract::The classic formulae in malaria epidemiology are reviewed that relate entomological parameters to malaria transmission, including mosquito survivorship and age-at-infection, the stability index (S), the human blood index (HBI), proportion of infected mosquitoes, the sporozoite rate, the entomological inoculation rate ...

    journal_title:Malaria journal

    pub_type: 杂志文章,评审

    doi:10.1186/1475-2875-3-13

    authors: Smith DL,McKenzie FE

    更新日期:2004-06-04 00:00:00

  • Ex vivo tetramer staining and cell surface phenotyping for early activation markers CD38 and HLA-DR to enumerate and characterize malaria antigen-specific CD8+ T-cells induced in human volunteers immunized with a Plasmodium falciparum adenovirus-vectored

    abstract:BACKGROUND:Malaria is responsible for up to a 600,000 deaths per year; conveying an urgent need for the development of a malaria vaccine. Studies with whole sporozoite vaccines in mice and non-human primates have shown that sporozoite-induced CD8+ T cells targeting liver stage antigens can mediate sterile protection. T...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-12-376

    authors: Schwenk R,Banania G,Epstein J,Kim Y,Peters B,Belmonte M,Ganeshan H,Huang J,Reyes S,Stryhn A,Ockenhouse CF,Buus S,Richie TL,Sedegah M

    更新日期:2013-10-29 00:00:00

  • Testing possible causes of gametocyte reduction in temporally out-of-synch malaria infections.

    abstract:BACKGROUND:The intraerythrocytic development cycle (IDC) of the rodent malaria Plasmodium chabaudi is coordinated with host circadian rhythms. When this coordination is disrupted, parasites suffer a 50% reduction in both asexual stages and sexual stage gametocytes over the acute phase of infection. Reduced gametocyte d...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-020-3107-1

    authors: Westwood ML,O'Donnell AJ,Schneider P,Albery GF,Prior KF,Reece SE

    更新日期:2020-01-14 00:00:00

  • Geo-additive modelling of malaria in Burundi.

    abstract:BACKGROUND:Malaria is a major public health issue in Burundi in terms of both morbidity and mortality, with around 2.5 million clinical cases and more than 15,000 deaths each year. It is still the single main cause of mortality in pregnant women and children below five years of age. Because of the severe health and eco...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-10-234

    authors: Nkurunziza H,Gebhardt A,Pilz J

    更新日期:2011-08-11 00:00:00

  • Use of over-the-counter malaria medicines in children and adults in three districts in Kenya: implications for private medicine retailer interventions.

    abstract:BACKGROUND:Global malaria control strategies highlight the need to increase early uptake of effective antimalarials for childhood fevers in endemic settings, based on a presumptive diagnosis of malaria in this age group. Many control programmes identify private medicine sellers as important targets to promote effective...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-6-57

    authors: Abuya TO,Mutemi W,Karisa B,Ochola SA,Fegan G,Marsh V

    更新日期:2007-05-10 00:00:00

  • Factors contributing to delay in parasite clearance in uncomplicated falciparum malaria in children.

    abstract:BACKGROUND:Drug resistance in Plasmodium falciparum is common in many endemic and other settings but there is no clear recommendation on when to change therapy when there is delay in parasite clearance after initiation of therapy in African children. METHODS:The factors contributing to delay in parasite clearance, def...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-9-53

    authors: Sowunmi A,Adewoye EO,Gbotsho GO,Happi CT,Sijuade A,Folarin OA,Okuboyejo TM,Michael OS

    更新日期:2010-02-15 00:00:00

  • The response of Plasmodium falciparum to isoleucine withdrawal is dependent on the stage of progression through the intraerythrocytic cell cycle.

    abstract:BACKGROUND:A previous study reported that the malaria parasite Plasmodium falciparum enters an altered growth state upon extracellular withdrawal of the essential amino acid isoleucine. Parasites slowed transit through the cell cycle when deprived of isoleucine prior to the onset of S-phase. METHODS:This project was u...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-020-03220-w

    authors: McLean KJ,Jacobs-Lorena M

    更新日期:2020-04-08 00:00:00

  • Global action for training in malaria elimination.

    abstract::The Rethinking Malaria Leadership Forum, held at Harvard Business School in February 2017 with collaboration of the Barcelona Institute for Global Health and the Swiss Tropical and Public Health Institute, identified this training gap as a high priority for both analysis and action. The gap in human resource training ...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-018-2199-3

    authors: Wirth DF,Casamitjana N,Tanner M,Reich MR

    更新日期:2018-01-25 00:00:00

  • The burden of Plasmodium vivax relapses in an Amerindian village in French Guiana.

    abstract::Malaria is a public health problem in French Guiana. Plasmodium vivax is the most frequent parasite. The objective of this analysis was to estimate the proportion of relapses in the burden of vivax malaria using the statistical rule stating that any case of vivax malaria occurring less than 90 days following a first e...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-12-367

    authors: Nacher M,Stefani A,Basurko C,Lemonnier D,Djossou F,Demar M,Elenga N,Brousse P,Ville M,Carme B

    更新日期:2013-10-24 00:00:00

  • Towards malaria elimination in Savannakhet, Lao PDR: mathematical modelling driven strategy design.

    abstract:BACKGROUND:The number of Plasmodium falciparum malaria cases around the world has decreased substantially over the last 15 years, but with the spread of resistance against anti-malarial drugs and insecticides, this decline may not continue. There is an urgent need to consider alternative, accelerated strategies to elim...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-017-2130-3

    authors: Tun STT,von Seidlein L,Pongvongsa T,Mayxay M,Saralamba S,Kyaw SS,Chanthavilay P,Celhay O,Nguyen TD,Tran TN,Parker DM,Boni MF,Dondorp AM,White LJ

    更新日期:2017-11-28 00:00:00

  • Modelling the benefits of long-acting or transmission-blocking drugs for reducing Plasmodium falciparum transmission by case management or by mass treatment.

    abstract:BACKGROUND:Anti-malarial drugs are an important tool for malaria control and elimination. Alongside their direct benefit in the treatment of disease, drug use has a community-level effect, clearing the reservoir of infection and reducing onward transmission of the parasite. Different compounds potentially have differen...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-017-1988-4

    authors: Bretscher MT,Griffin JT,Ghani AC,Okell LC

    更新日期:2017-08-16 00:00:00

  • Strengthening public health pesticide management in countries endemic with malaria or other major vector-borne diseases: an evaluation of three strategies.

    abstract:BACKGROUND:Public health pesticides has been the mainstay control of vectors of malaria and other diseases, and public health pests, but there is increasing concern over how these pesticides are being managed. Poor pesticide management could lead to risks to human health and the environment, or diminish the effectivene...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-13-368

    authors: van den Berg H,Yadav RS,Zaim M

    更新日期:2014-09-18 00:00:00

  • Implementation of a malaria sentinel surveillance system in Togo: a pilot study.

    abstract:BACKGROUND:In Togo, the National Malaria Control Programme, in collaboration with the Global Fund to Fight AIDS, Tuberculosis and Malaria, has implemented a pilot study for malaria sentinel surveillance since 2017, which consists of collecting information in real time and analysing this information for decision-making....

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-020-03399-y

    authors: Thomas A,Bakai TA,Atcha-Oubou T,Tchadjobo T,Voirin N

    更新日期:2020-09-09 00:00:00

  • Validation of the ligase detection reaction fluorescent microsphere assay for the detection of Plasmodium falciparum resistance mediating polymorphisms in Uganda.

    abstract:BACKGROUND:Malaria remains a major public health problem, and its control has been hampered by drug resistance. For a number of drugs, Plasmodium falciparum single nucleotide polymorphisms (SNPs) are associated with altered drug sensitivity and can be used as markers of drug resistance. Several techniques have been stu...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-13-95

    authors: Nankoberanyi S,Mbogo GW,LeClair NP,Conrad MD,Tumwebaze P,Tukwasibwe S,Kamya MR,Tappero J,Nsobya SL,Rosenthal PJ

    更新日期:2014-03-14 00:00:00

  • Genetic diversity of expressed Plasmodium falciparum var genes from Tanzanian children with severe malaria.

    abstract:BACKGROUND:Severe malaria has been attributed to the expression of a restricted subset of the var multi-gene family, which encodes for Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1). PfEMP1 mediates cytoadherence and sequestration of infected erythrocytes into the post-capillary venules of vital organs s...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-11-230

    authors: Mugasa J,Qi W,Rusch S,Rottmann M,Beck HP

    更新日期:2012-07-16 00:00:00

  • Identification and characterization of the merozoite surface protein 1 (msp1) gene in a host-generalist avian malaria parasite, Plasmodium relictum (lineages SGS1 and GRW4) with the use of blood transcriptome.

    abstract:BACKGROUND:The merozoite surface protein 1 (msp1) is one of the most studied vaccine candidate genes in mammalian Plasmodium spp. to have been used for investigations of epidemiology, population structures, and immunity to infections. However methodological difficulties have impeded the use of nuclear markers such as m...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-12-381

    authors: Hellgren O,Kutzer M,Bensch S,Valkiūnas G,Palinauskas V

    更新日期:2013-10-30 00:00:00

  • Comparative population structure of Plasmodium malariae and Plasmodium falciparum under different transmission settings in Malawi.

    abstract:BACKGROUND:Described here is the first population genetic study of Plasmodium malariae, the causative agent of quartan malaria. Although not as deadly as Plasmodium falciparum, P. malariae is more common than previously thought, and is frequently in sympatry and co-infection with P. falciparum, making its study increas...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-10-38

    authors: Bruce MC,Macheso A,McConnachie A,Molyneux ME

    更新日期:2011-02-11 00:00:00

  • Polymorphisms in Pvkelch12 and gene amplification of Pvplasmepsin4 in Plasmodium vivax from Thailand, Lao PDR and Cambodia.

    abstract:BACKGROUND:Mutations in Pfkelch13 and Pfplasmepsin2/3 gene amplification are well-established markers for artemisinin and piperaquine resistance in Plasmodium falciparum, a widespread problem in the Greater Mekong Subregion (GMS). The Plasmodium vivax parasite population has experienced varying drug pressure dependent ...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/s12936-019-2749-3

    authors: Duanguppama J,Mathema VB,Tripura R,Day NPJ,Maxay M,Nguon C,von Seidlein L,Dhorda M,Peto TJ,Nosten F,White NJ,Dondorp AM,Imwong M

    更新日期:2019-04-02 00:00:00

  • Characterizing the effect of temperature fluctuation on the incidence of malaria: an epidemiological study in south-west China using the varying coefficient distributed lag non-linear model.

    abstract:BACKGROUND:Malaria transmission is strongly determined by the environmental temperature and the environment is rarely constant. Therefore, mosquitoes and parasites are not only exposed to the mean temperature, but also to daily temperature variation. Recently, both theoretical and laboratory work has shown, in addition...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-13-192

    authors: Zhao X,Chen F,Feng Z,Li X,Zhou XH

    更新日期:2014-05-27 00:00:00

  • Declining in efficacy of a three-day combination regimen of mefloquine-artesunate in a multi-drug resistance area along the Thai-Myanmar border.

    abstract:BACKGROUND:Declining in clinical efficacy of artesunate-mefloquine combination has been documented in areas along the eastern border (Thai-Cambodian) of Thailand. In the present study, the clinical efficacy of the three-day combination regimen of artesunate-mefloquine as first-line treatment for acute uncomplicated fal...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-9-273

    authors: Na-Bangchang K,Ruengweerayut R,Mahamad P,Ruengweerayut K,Chaijaroenkul W

    更新日期:2010-10-08 00:00:00

  • Malaria morbidity and immunity among residents of villages with different Plasmodium falciparum transmission intensity in North-Eastern Tanzania.

    abstract:BACKGROUND:The relationship between the burden of uncomplicated malaria and transmission intensity is unclear and a better understanding of this relationship is important for the implementation of intervention programmes. METHODS:A 6-month longitudinal study monitoring risk factors for anaemia and febrile malaria epis...

    journal_title:Malaria journal

    pub_type: 杂志文章

    doi:10.1186/1475-2875-3-26

    authors: Lusingu JP,Vestergaard LS,Mmbando BP,Drakeley CJ,Jones C,Akida J,Savaeli ZX,Kitua AY,Lemnge MM,Theander TG

    更新日期:2004-07-28 00:00:00

  • Early variations in plasmodium falciparum dynamics in Nigerian children after treatment with two artemisinin-based combinations: implications on delayed parasite clearance.

    abstract:BACKGROUND:Combination treatments, preferably containing an artemisinin derivative, are recommended to improve efficacy and prevent Plasmodium falciparum drug resistance. Artemether-lumefantrine (AL) and artesunate-amodiaquine (AA) are efficacious regimens that have been widely adopted in sub-Saharan Africa. However, m...

    journal_title:Malaria journal

    pub_type: 杂志文章,随机对照试验

    doi:10.1186/1475-2875-9-335

    authors: Michael OS,Gbotosho GO,Folarin OA,Okuboyejo T,Sowunmi A,Oduola AM,Happi CT

    更新日期:2010-11-22 00:00:00