An Alarming Eastward Front of Cassava Mosaic Disease in Development in West Africa.

Begomoviruses are a major threat to cassava production in Africa. Indeed, during the 1990s, the emergence of a recombinant begomovirus (East African cassava mosaic virus-Uganda, EACMV-Ug) resulted in crop devastation and severe famine in Uganda. In 2023, during a pre-survey of cassava farms at Forécariah, South-West Guinea, 22 samples showing peculiar cassava mosaic disease (CMD) symptoms were collected, and subsequent laboratory analysis confirmed the presence of EACMV-Ug in the samples.

Molecular Diversity and Distribution of Whiteflies () in Cassava Fields Across South West and North Central, Nigeria.

Whitefly (Gennadium, Hemiptera) causes severe damage to cassava plants through excessive feeding on leaves and transmitting viruses, such as (ACMV), (EACMV), and ipomoviruses that cause cassava brown streak disease. Currently, little is known about the molecular diversity and distribution of whitefly species in the major cassava-growing zones of Nigeria. This study aimed to address the knowledge gap by assessing the genetic diversity, distribution, and associated cassava mosaic begomoviruses (CMBs) in whiteflies across South West and North Central, Nigeria.

Datasets on agromorphological characters and distribution of cassava (Manihot esculenta L.) accessions cultivated in South-West and North-Central regions of Nigeria.

The data presented here are agronomic indicators of cassava accessions collected during epidemiological surveys of cassava farms across South-West and North-Central Nigeria in 2021-2022. Cassava accessions were obtained from each farm surveyed and initially established in a randomized plot design at the WAVE Covenant University demonstration plot. Agronomic indicators were collected at 3-month intervals following the methods of (Fukuda et al.

Nasal Carriage, Antimicrobial Susceptibility Profile, and Enterotoxin Genes of Isolated from Children with Asthma.

Unlabelled: Asthma is a chronic respiratory disease that affects children worldwide. Increasing evidence suggests that contributes to the pathology of asthma. The aim of this study was to evaluate the nasal carriage, antimicrobial susceptibility profile, and presence of enterotoxin genes from isolated from children with asthma.

Computational models for improving surveillance for the early detection of direct introduction of cassava brown streak disease in Nigeria.

Cassava is a key source of calories for smallholder farmers in sub-Saharan Africa but its role as a food security crop is threatened by the cross-continental spread of cassava brown streak disease (CBSD) that causes high yield losses. In order to mitigate the impact of CBSD, it is important to minimise the delay in first detection of CBSD after introduction to a new country or state so that interventions can be deployed more effectively. Using a computational model that combines simulations of CBSD spread at both the landscape and field scales, we model the effectiveness of different country level survey strategies in Nigeria when CBSD is directly introduced.