Effects of Seasonal Conditions on Abundance of Malaria Vector Anopheles stephensi Mosquitoes, Djibouti, 2018-2021
We describe the influence of seasonal meteorologic variations and rainfall events on Anopheles stephensi mosquito populations during a 40-month surveillance study at a US military base in Djibouti. Focusing surveillance and risk mitigation for An. stephensi mosquitoes when climatic conditions are optimal presents an opportunity for malaria prevention and control in eastern Africa.PMID:36958009 | DOI:10.3201/eid2904.220549 (Source: Emerging Infectious Diseases)
Source: Emerging Infectious Diseases - March 23, 2023 Category: Infectious Diseases Authors: Alia Zayed Manal Moustafa Reham Tageldin James F Harwood Source Type: research
Chikungunya Outbreak in Country with Multiple Vectorborne Diseases, Djibouti, 2019-2020
Emerg Infect Dis. 2023 Apr;29(4):826-830. doi: 10.3201/eid2904.221850.ABSTRACTDuring 2019-2020, a chikungunya outbreak occurred in Djibouti City, Djibouti, while dengue virus and malaria parasites were cocirculating. We used blotting paper to detect arbovirus emergence and confirm that it is a robust method for detecting and monitoring arbovirus outbreaks remotely.PMID:36958020 | DOI:10.3201/eid2904.221850 (Source: Emerging Infectious Diseases)
Source: Emerging Infectious Diseases - March 23, 2023 Category: Infectious Diseases Authors: Emilie Javelle Franck de Laval Guillaume Andr é Durand Aissata Dia C écile Ficko Aurore Bousquet Deborah Delaune S ébastien Briolant Audrey M érens Constance Brossier Herv é Pommier Florian Gala Alain Courtiol Quentin Savreux S ébastien Sicard Jean- Source Type: research
Effects of Seasonal Conditions on Abundance of Malaria Vector Anopheles stephensi Mosquitoes, Djibouti, 2018-2021
We describe the influence of seasonal meteorologic variations and rainfall events on Anopheles stephensi mosquito populations during a 40-month surveillance study at a US military base in Djibouti. Focusing surveillance and risk mitigation for An. stephensi mosquitoes when climatic conditions are optimal presents an opportunity for malaria prevention and control in eastern Africa.PMID:36958009 | DOI:10.3201/eid2904.220549 (Source: Emerging Infectious Diseases)
Source: Emerging Infectious Diseases - March 23, 2023 Category: Infectious Diseases Authors: Alia Zayed Manal Moustafa Reham Tageldin James F Harwood Source Type: research
Chikungunya Outbreak in Country with Multiple Vectorborne Diseases, Djibouti, 2019-2020
Emerg Infect Dis. 2023 Apr;29(4):826-830. doi: 10.3201/eid2904.221850.ABSTRACTDuring 2019-2020, a chikungunya outbreak occurred in Djibouti City, Djibouti, while dengue virus and malaria parasites were cocirculating. We used blotting paper to detect arbovirus emergence and confirm that it is a robust method for detecting and monitoring arbovirus outbreaks remotely.PMID:36958020 | DOI:10.3201/eid2904.221850 (Source: Emerging Infectious Diseases)
Source: Emerging Infectious Diseases - March 23, 2023 Category: Infectious Diseases Authors: Emilie Javelle Franck de Laval Guillaume Andr é Durand Aissata Dia C écile Ficko Aurore Bousquet Deborah Delaune S ébastien Briolant Audrey M érens Constance Brossier Herv é Pommier Florian Gala Alain Courtiol Quentin Savreux S ébastien Sicard Jean- Source Type: research
Effects of Seasonal Conditions on Abundance of Malaria Vector Anopheles stephensi Mosquitoes, Djibouti, 2018-2021
We describe the influence of seasonal meteorologic variations and rainfall events on Anopheles stephensi mosquito populations during a 40-month surveillance study at a US military base in Djibouti. Focusing surveillance and risk mitigation for An. stephensi mosquitoes when climatic conditions are optimal presents an opportunity for malaria prevention and control in eastern Africa.PMID:36958009 | DOI:10.3201/eid2904.220549 (Source: Emerging Infectious Diseases)
Source: Emerging Infectious Diseases - March 23, 2023 Category: Infectious Diseases Authors: Alia Zayed Manal Moustafa Reham Tageldin James F Harwood Source Type: research
Chikungunya Outbreak in Country with Multiple Vectorborne Diseases, Djibouti, 2019 –2020
E. Javelle et al. (Source: Emerging Infectious Diseases Journal)
Source: Emerging Infectious Diseases Journal - March 18, 2023 Category: Infectious Diseases Source Type: research
Effects of Seasonal Conditions on Abundance of Malaria Vector Anopheles stephensi Mosquitoes, Djibouti, 2018 –2021
A. Zayed et al. (Source: Emerging Infectious Diseases Journal)
Source: Emerging Infectious Diseases Journal - March 16, 2023 Category: Infectious Diseases Source Type: research
Unusual malaria outbreak tied to invasive mosquito
Scientists have linked an invasive mosquito to an unusual outbreak of malaria in Ethiopia.
Anopheles stephensi
, native to southern Asia, was first identified in Africa a decade ago in the Republic of Djibouti, which borders Ethiopia. It has since spread to at least four other countries in sub-Saharan Africa. Now, amid lingering questions about whether the insect’s presence is significantly driving cases of malaria on the continent, researchers have confirmed that people infected in an uncommon dry season outbreak of the disease were more likely to have the mosquito living close to their homes.
The find, ...
Source: Science of Aging Knowledge Environment - November 1, 2022 Category: Geriatrics Source Type: research
Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions and Relatedness to Other Global Isolates, Djibouti, 2019-2020
We examined 1,002 samples from suspected malaria patients in Djibouti City, Djibouti, to investigate pfhrp2/3 deletions. We performed assays for Plasmodium antigen carriage, pfhrp2/3 genotyping, and sequencing for 7 neutral microsatellites to assess relatedness. By PCR assay, 311 (31.0%) samples tested positive for P. falciparum infection, and 296 (95.2%) were successfully genotyped; 37 (12.5%) samples were pfhrp2+/pfhrp3+, 51 (17.2%) were pfhrp2+/pfhrp3-, 5 (1.7%) were pfhrp2-/pfhrp3+, and 203 (68.6%) were pfhrp2-/pfhrp3-. Histidine-rich protein 2/3 antigen concentrations were reduced with corresponding gene deletions. Dj...
Source: Emerging Infectious Diseases - September 23, 2022 Category: Infectious Diseases Authors: Eric Rogier Jessica N McCaffery Mohamed Ali Mohamed Camelia Herman Doug Nace Rachel Daniels Naomi Lucchi Sophie Jones Ira Goldman Michael Aidoo Qin Cheng Edie A Kemenang Venkatachalam Udhayakumar Jane Cunningham Source Type: research
Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions and Relatedness to Other Global Isolates, Djibouti, 2019-2020
We examined 1,002 samples from suspected malaria patients in Djibouti City, Djibouti, to investigate pfhrp2/3 deletions. We performed assays for Plasmodium antigen carriage, pfhrp2/3 genotyping, and sequencing for 7 neutral microsatellites to assess relatedness. By PCR assay, 311 (31.0%) samples tested positive for P. falciparum infection, and 296 (95.2%) were successfully genotyped; 37 (12.5%) samples were pfhrp2+/pfhrp3+, 51 (17.2%) were pfhrp2+/pfhrp3-, 5 (1.7%) were pfhrp2-/pfhrp3+, and 203 (68.6%) were pfhrp2-/pfhrp3-. Histidine-rich protein 2/3 antigen concentrations were reduced with corresponding gene deletions. Dj...
Source: Emerging Infectious Diseases - September 23, 2022 Category: Infectious Diseases Authors: Eric Rogier Jessica N McCaffery Mohamed Ali Mohamed Camelia Herman Doug Nace Rachel Daniels Naomi Lucchi Sophie Jones Ira Goldman Michael Aidoo Qin Cheng Edie A Kemenang Venkatachalam Udhayakumar Jane Cunningham Source Type: research
Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions and Relatedness to Other Global Isolates, Djibouti, 2019-2020
We examined 1,002 samples from suspected malaria patients in Djibouti City, Djibouti, to investigate pfhrp2/3 deletions. We performed assays for Plasmodium antigen carriage, pfhrp2/3 genotyping, and sequencing for 7 neutral microsatellites to assess relatedness. By PCR assay, 311 (31.0%) samples tested positive for P. falciparum infection, and 296 (95.2%) were successfully genotyped; 37 (12.5%) samples were pfhrp2+/pfhrp3+, 51 (17.2%) were pfhrp2+/pfhrp3-, 5 (1.7%) were pfhrp2-/pfhrp3+, and 203 (68.6%) were pfhrp2-/pfhrp3-. Histidine-rich protein 2/3 antigen concentrations were reduced with corresponding gene deletions. Dj...
Source: Emerging Infectious Diseases - September 23, 2022 Category: Infectious Diseases Authors: Eric Rogier Jessica N McCaffery Mohamed Ali Mohamed Camelia Herman Doug Nace Rachel Daniels Naomi Lucchi Sophie Jones Ira Goldman Michael Aidoo Qin Cheng Edie A Kemenang Venkatachalam Udhayakumar Jane Cunningham Source Type: research
Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions and Relatedness to Other Global Isolates, Djibouti, 2019-2020
We examined 1,002 samples from suspected malaria patients in Djibouti City, Djibouti, to investigate pfhrp2/3 deletions. We performed assays for Plasmodium antigen carriage, pfhrp2/3 genotyping, and sequencing for 7 neutral microsatellites to assess relatedness. By PCR assay, 311 (31.0%) samples tested positive for P. falciparum infection, and 296 (95.2%) were successfully genotyped; 37 (12.5%) samples were pfhrp2+/pfhrp3+, 51 (17.2%) were pfhrp2+/pfhrp3-, 5 (1.7%) were pfhrp2-/pfhrp3+, and 203 (68.6%) were pfhrp2-/pfhrp3-. Histidine-rich protein 2/3 antigen concentrations were reduced with corresponding gene deletions. Dj...
Source: Emerging Infectious Diseases - September 23, 2022 Category: Infectious Diseases Authors: Eric Rogier Jessica N McCaffery Mohamed Ali Mohamed Camelia Herman Doug Nace Rachel Daniels Naomi Lucchi Sophie Jones Ira Goldman Michael Aidoo Qin Cheng Edie A Kemenang Venkatachalam Udhayakumar Jane Cunningham Source Type: research
Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions and Relatedness to Other Global Isolates, Djibouti, 2019 –2020
E. Rogier et al. (Source: Emerging Infectious Diseases Journal)
Source: Emerging Infectious Diseases Journal - September 14, 2022 Category: Infectious Diseases Source Type: research
Strategies for conducting Anopheles stephensi surveys in non-endemic areas
Acta Trop. 2022 Sep 1:106671. doi: 10.1016/j.actatropica.2022.106671. Online ahead of print.ABSTRACTAnopheles stephensi, a malaria vector species previously only known from Asia, was first detected in Africa in Djibouti in 2012, has been subsequently collected in Ethiopia, Sudan, and Somalia, and may be spreading further. Countries may wish to implement mosquito surveys to determine if An. stephensi is present, or to determine the extent of its distribution, if present. Furthermore, mosquito surveys can provide data on the bionomics of An. stephensi and its adaptation to the local environment that can help plan and impleme...
Source: Acta Tropica - September 4, 2022 Category: Infectious Diseases Authors: Ayman Ahmed Seth R Irish Sarah Zohdy Melissa Yoshimizu Fitsum G Tadesse Source Type: research
Viruses, Vol. 14, Pages 1918: SARS-CoV-2 Infections in Vaccinated and Unvaccinated Populations in Camp Lemonnier, Djibouti, from April 2020 to January 2022
This study contributes to the knowledge base of circulating SARS-CoV-2 lineages in the under-sampled country of Djibouti, where only 716 total genome sequences are available at time of publication. Our analysis resulted in the detection of circulating variants of concern, mutations of interest in lineages in which those mutations are not common, and emerging spike mutations. (Source: Viruses)
Source: Viruses - August 30, 2022 Category: Virology Authors: Catherine E. Arnold Logan J. Voegtly Emily K. Stefanov Matthew R. Lueder Andrea E. Luquette Robin H. Miller Haven L. Miner Andrew J. Bennett Lindsay Glang Tara N. McGinnis Kristie E. Reisinger Jae W. Dugan Michael A. Mangat Daniel J. Silberger Rebecca L. Tags: Article Source Type: research
