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01 · ABSTRACT

Abstract

In this paper, we describe sickle cell disease as a public health issue in Angola. Angola has an estimated population of around 34 million, with approximately 18% to 20% of people affected. In 2022, 924 new cases were recorded, and studies indicate that the disease is one of the leading causes of infant death in the country, even with some progress in infection control. Studies also indicate that, in the same year, approximately 1,000 children died, and it is estimated that 1,000 children die annually and more than 7,000 children are born with the disease each year. It is a disease that causes deformation of red blood cells, leading to symptoms such as chronic anemia, intense pain due to obstruction of blood vessels, and increased susceptibility to infections, which results in suffering and premature death. In sickle cell disease, the HbSS genotype of sickle cell anemia, considered the most severe form, prevalent in the African continent, has high morbidity and mortality. In this work, we used quantitative observation as a research method, which allowed us to collect numerical data about the phenomenon. It also allowed us to quantify the problem and understand its dimension, as well as to investigate and observe the phenomenon comprehensively.

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02 · PUBLICATION RECORD

Article details

JournalMedical Research Archives
IssueVol 13 No 11 (2025): Vol.13, Issue 11, November 2025
SectionResearch Articles
Published25 November 2025
DOI10.18103/mra.v13i11.6997
ISSN2375-1924
03 · RIGHTS & REUSE

Rights & reuse

This article is published under a Creative Commons Attribution License (CC BY 3.0) and may be shared or distributed by anyone as long as attribution is given to the journal.

Authors & affiliations

FP

Francisco João Pinto

Agostinho Neto University. UNINET – Center for Studies, Scientific Research and Advanced Training in Computer Systems and Communication University Campus of the Camama, S/N, Luanda-Angola

SG

Scott D. Grosse

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

IO

Isaac Odame

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

HA

Hani K. Atrash

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

DA

Djesika D. Amendah

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

FP

Frédéric B. Piel

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

TW

Thomas N. Williams

Division of Blood Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia 30333, USA.

UR

Uma Ramamurthy

Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

BS

Brigida Santos

Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

LB

Luis Bernardino

Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

RW

Russell E. Ware

Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

GC

Greice Lemos Cardoso

schoolUniversidade Federal do Pará, Programa de Pós-Graduação em Genética e Biologia , Pará, , Brasil.

PS

Prithu Sundt

Sickle Cell Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, USA.

MG

Mark T. Gladwin

Sickle Cell Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, USA

EN

Enrico M. Novelli

Sickle Cell Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, USA.

MG

Madelyn S. Gould

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

FM

Frank A. Marrocco

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

MK

Marjorie Kleinman

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

JT

John Graham Thomas

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

KM

Katherine Mostkoff

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

JC

Jean Cote

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

MD

Mark Davies

Division of Child and Adolescent Psychiatry, Columbia University and New York State Psychiatric Institute, New York, NY 10032, USA.

DC

D. Creel

Phoenix Veterans Administration Hospital and Arizona State University, University of Minnesota Dental and Medical Schools, Minneapolis, Minn

CW

C. J. Witkop Jr

Division of Human and Oral Genetics Phoenix, Ariz., University of Minnesota Dental and Medical Schools, Minneapolis, Minn.

RK

R. A. King

Department of Medicine, University of Minnesota Dental and Medical Schools, Minneapolis, Minn.

AS

Amanda Simons

Framingham State University, through the Remixing Open Textbooks with an Equity Lens (ROTEL) project.

CK

C. Kruijt

Department of Human Genetics, Amsterdam UMC, and the Netherlands Institute for Neuroscienc

LM

L. Montoliu

Department of Molecula Biology, National Centre for Biotechnology (CNB-CSIC), CIBERER-ISCIII, Madrid, Spain.

PH

Peter Heiduschka

Dept. of Ophthalmology, University of Muenster Medical Centre, Muenster, Germany.

DD

David P. Dimmock

Rady Children's Institute for Genomic Medicine, San Diego, California, USA.

UG

Ulrike Grenzebach

Dept. of Ophthalmology, University of Muenster Medical Centre, Muenster, Germany.

NE

Nicole Eter

Dept. of Ophthalmology, University of Muenster Medical Centre, Muenster, Germany.

JB

Julia Biermann

Dept. of Ophthalmology, University of Muenster Medical Centre, Muenster, Germany.

HB

Hoffmann MB M. B.

Visual Processing Lab - Dpt Ophthalmology - Otto-von-Guericke-University Magdebur

CT

Carlo Tacchetti

Department of Experimental Medicine, University of Genova Medical School, Via deToni 14, 16132 Genoa, Italy.

GK

G. Keren

Lawrence Erlbaum Associates, Inc. (in Hillsdale, NJ, US) is the publishe

CL

C. Lewis

Lawrence Erlbaum Associates, Inc. (in Hillsdale, NJ, US) is the publishe

MH

Marjan Huizing

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

MM

May C. V. Malicdan

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

JW

Jennifer A. Wang

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

HP

Hadass Pri-Chen

Metabolic Disease Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.

RH

Richard A. Hess

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland

RF

Roxanne Fischer

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

KO

Kevin J. O'Brien

Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

MM

Melissa A. Merideth

Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

WG

William A. Gahl

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

BG

Bernadette R. Gochuico

Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland.

GC

G. Chiang

Thacker College of Animal Science and Technology, China Agricultural University, No. 2. Yuanmingyuan West Road, Beijing, Post Code 100193, China.

WL

Wenqing Lu

Thacker College of Animal Science and Technology, China Agricultural University, No. 2. Yuanmingyuan West Road, Beijing, Post Code 100193, China.

XP

Xiangshu Piao

Thacker College of Animal Science and Technology, China Agricultural University, No. 2. Yuanmingyuan West Road, Beijing, Post Code 100193, China.

JJ

J. K. J.K. Hu

Thacker College of Animal Science and Technology, China Agricultural University, No. 2. Yuanmingyuan West Road, Beijing, Post Code 100193, China.

HL

Henry W. Lim

Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health, Detroit, Michigan.

IK

Indermeet Kohli

Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health, Detroit, Michigan

IH

Iltefat H. Hamzavi

Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health, Detroit, Michigan.

DL

D. Lvovs

Scientific Center of Russian Federation Research Institute for Genetics and Selection of Industrial Microorganisms "Genetika", 1-st Dorozny proezd, 1, Moscow, Russia, 113545.

OF

O. O. Favorova

Scientific Center of Russian Federation Research Institute for Genetics and Selection of Industrial Microorganisms "Genetika", 1-st Dorozny proezd, 1, Moscow, Russia, 113545.

AF

A. V. Favorov

Scientific Center of Russian Federation Research Institute for Genetics and Selection of Industrial Microorganisms "Genetika", 1-st Dorozny proezd, 1, Moscow, Russia, 113545.

DB

David Bick

HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, USA.

SB

Sarah L. Bick

Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware, USA.

MC

Mark J. Caulfield

William Harvey Research Institute, Queen Mary University of London, London, UK.

RS

Richard H. Scott

Department of Clinical Genetics, Great Ormond Street Hospital for Children National Health Service (NHS) Foundation Trust, London, UK.

DR

David C. Rees

Department of Paediatric Haematology, King's College Hospital NHS Foundation Trust, King's College London.

TW

Thomas N. Williams

Department of Paediatric Haematology, King's College Hospital NHS Foundation Trust, King's College London.

MG

Mark T. Gladwin

Department of Paediatric Haematology, King's College Hospital NHS Foundation Trust, King's College London.

KW

K. J. Wierenga

Sickle Cell Unit, Tropical Medicine Research Institute, University of the West Indies, Mona, Kingston, Jamaica.

IH

I. R. Hambleton

Sickle Cell Unit, Tropical Medicine Research Institute, University of the West Indies, Mona, Kingston, Jamaica.

NL

N. A. Lewis

Sickle Cell Unit, Tropical Medicine Research Institute, University of the West Indies, Mona, Kingston, Jamaica.

OA

Obi Peter Adigwe

Office of the Director General, National Institute for Pharmaceutical Research and Development, Abuja, Federal Capital Territory, Nigeria

GO

Godspower Onavbavba

Office of the Director General, National Institute for Pharmaceutical Research and Development, Abuja, Federal Capital Territory, Nigeria.

EA

E. S. Azevedo

Department of Medical Laboratory Sciences, University of Nigeria, Enugu, Nigeria.

AE

A. Y. Elzouki

Textbook of Clinical Pediatrics 2ª ed. 2012 Edição. Springer, England.

WO

William Oh , F.B

Textbook of Clinical Pediatrics 2ª ed. 2012 Edição. Springer, England.

KW

K. J Wierenga

Survival estimates for patients with homozygous sickle-cell disease in Jamaica: A clinic-based population study.

IH

I. R. Hambleton

Survival estimates for patients with homozygous sickle-cell disease in Jamaica: A clinic-based population study.

NL

N. A. Lewis

Survival estimates for patients with homozygous sickle-cell disease in Jamaica: A clinic-based population study.

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