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1.
Emerg Infect Dis ; 28(11): 2214-2225, 2022 Nov.
Article in English | MEDLINE | ID: covidwho-2065412

ABSTRACT

Prior immune responses to coronaviruses might affect human SARS-CoV-2 response. We screened 2,565 serum and plasma samples collected from 2013 through early 2020, before the COVID-19 pandemic began, from 2,250 persons in 4 countries in Africa (Kenya, Nigeria, Tanzania, and Uganda) and in Thailand, including persons living with HIV-1. We detected IgG responses to SARS-CoV-2 spike (S) subunit 2 protein in 1.8% of participants. Profiling against 23 coronavirus antigens revealed that responses to S, subunit 2, or subunit 1 proteins were significantly more frequent than responses to the receptor-binding domain, S-Trimer, or nucleocapsid proteins (p<0.0001). We observed similar responses in persons with or without HIV-1. Among all coronavirus antigens tested, SARS-CoV-2, SARS-CoV-1, and Middle East respiratory syndrome coronavirus antibody responses were much higher in participants from Africa than in participants from Thailand (p<0.01). We noted less pronounced differences for endemic coronaviruses. Serosurveys could affect vaccine and monoclonal antibody distribution across global populations.


Subject(s)
COVID-19 , Humans , Antibodies, Monoclonal , Antibodies, Viral , Antibody Formation , COVID-19/epidemiology , Immunoglobulin G , Nigeria , Nucleocapsid Proteins , Pandemics , SARS-CoV-2 , Spike Glycoprotein, Coronavirus , Thailand/epidemiology , Africa
2.
Health Secur ; 20(3): 203-211, 2022.
Article in English | MEDLINE | ID: covidwho-1864943

ABSTRACT

The COVID-19 pandemic has caused significant morbidity and mortality since its emergence in December 2019. In Nigeria, the government inaugurated the Presidential Task Force on COVID-19 to coordinate resources while the Nigeria Centre for Disease Control led the public health response. The Nigeria Ministry of Defence Health Implementation Programme (MODHIP), in partnership with the US Army Medical Research Directorate - Africa/Nigeria, responded immediately to the pandemic by establishing a public health emergency operations center to coordinate the military response in support of national efforts. MODHIP has 5 functional units and 6 pillars that coordinate testing, surveillance, case management, risk communication, logistics, research, and infection prevention and control. It developed an incident action plan and each pillar had its own terms of reference to guide specific response activities while preventing duplication of efforts within the military and the Nigeria Centre for Disease Control. In addition, awareness and sensitization sessions were conducted on preventive practices for COVID-19 and infrastructure was provided for hand hygiene and screening at all military facilities. Military laboratories were configured for SARS-CoV-2 testing while selected military health facilities were equipped and designated as COVID-19 treatment centers. Research proposals aimed at better understanding the disease and controlling it were also developed. The traditional combat role of the military was redirected to complement this public health emergency response. In this article, we highlight gaps, opportunities, and lessons to improve military participation in public health emergency response in the future. More funding and multisectoral collaboration with civilian institutions are key to strengthening military public health emergency preparedness and response capabilities.


Subject(s)
COVID-19 Drug Treatment , COVID-19 , COVID-19/prevention & control , COVID-19 Testing , Humans , Nigeria/epidemiology , Pandemics/prevention & control , Public Health , SARS-CoV-2
3.
Public Health Nutr ; 25(4): 930-943, 2022 04.
Article in English | MEDLINE | ID: covidwho-1758081

ABSTRACT

OBJECTIVE: We determined the prevalence and identified predictors of food insecurity in four African countries. DESIGN: Cross-sectional analyses at study enrolment. SETTING: From January 2013 to March 2020, people living with HIV (PLWH) and without HIV were enrolled at twelve clinics in Kenya, Uganda, Tanzania and Nigeria. PARTICIPANTS: Participants reporting not having enough food to eat over the past 12 months or receiving <3 meals/d were defined as food insecure. Robust Poisson regression models were used to estimate unadjusted and adjusted prevalence ratios (aPR) and 95 % CI for predictors of food insecurity among all participants and separately among PLWH. RESULTS: 1694/3496 participants (48·5 %) reported food insecurity at enrolment, with no difference by HIV status. Food insecurity was more common among older participants (50+ v. 18-24 years aPR 1·35, 95 % CI 1·15, 1·59). Having 2-5 (aPR 1·14, 95 % CI 1·01, 1·30) or >5 dependents (aPR 1·17, 95 % CI 1·02, 1·35), and residing in Kisumu West, Kenya (aPR 1·63, 95 % CI 1·42, 1·87) or Nigeria (aPR 1·20, 95 % CI 1·01, 1·41) was associated with food insecurity. Residing in Tanzania (aPR 0·65, 95 % CI 0·53, 0·80) and increasing education (secondary/above education v. none/some primary education aPR 0·73, 95 % CI 0·66, 0·81) was protective against food insecurity. Antiretroviral therapy (ART)-experienced PLWH were more likely to be food secure irrespective of viral load. CONCLUSION: Food insecurity was highly prevalent in our cohort though not significantly associated with HIV. Policies aimed at promoting education, elderly care, ART access in PLWH and financial independence could potentially improve food security in Africa.


Subject(s)
Food Supply , HIV Infections , Aged , Cohort Studies , Cross-Sectional Studies , Food Insecurity , HIV Infections/epidemiology , Humans , Prevalence , Uganda
4.
Clin Infect Dis ; 73(10): 1901-1905, 2021 11 16.
Article in English | MEDLINE | ID: covidwho-1522150

ABSTRACT

The coronavirus disease 2019 (COVID-19) pandemic and associated public health responses have disrupted daily living activities with economic and health consequences globally. We observed transient decreases in human immunodeficiency virus (HIV) clinic visit adherence and food security among persons living with HIV early in the pandemic, and an increase in viral suppression later in the pandemic.


Subject(s)
COVID-19 , HIV Infections , Food Security , HIV , HIV Infections/epidemiology , Humans , Pandemics , SARS-CoV-2
5.
PLoS One ; 16(9): e0257567, 2021.
Article in English | MEDLINE | ID: covidwho-1430542

ABSTRACT

INTRODUCTION: The COVID-19 pandemic continues to overwhelm health systems across the globe. We aimed to assess the readiness of hospitals in Nigeria to respond to the COVID-19 outbreak. METHOD: Between April and October 2020, hospital representatives completed a modified World Health Organisation (WHO) COVID-19 hospital readiness checklist consisting of 13 components and 124 indicators. Readiness scores were classified as adequate (score ≥80%), moderate (score 50-79.9%) and not ready (score <50%). RESULTS: Among 20 (17 tertiary and three secondary) hospitals from all six geopolitical zones of Nigeria, readiness score ranged from 28.2% to 88.7% (median 68.4%), and only three (15%) hospitals had adequate readiness. There was a median of 15 isolation beds, four ICU beds and four ventilators per hospital, but over 45% of hospitals established isolation facilities and procured ventilators after the onset of COVID-19. Of the 13 readiness components, the lowest readiness scores were reported for surge capacity (61.1%), human resources (59.1%), staff welfare (50%) and availability of critical items (47.7%). CONCLUSION: Most hospitals in Nigeria were not adequately prepared to respond to the COVID-19 outbreak. Current efforts to strengthen hospital preparedness should prioritize challenges related to surge capacity, critical care for COVID-19 patients, and staff welfare and protection.


Subject(s)
COVID-19/epidemiology , Hospitals/statistics & numerical data , Pandemics , Surveys and Questionnaires , Hospitals/supply & distribution , Humans , Nigeria/epidemiology , Surge Capacity
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