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Communicable diseases, also known as infectious diseases, are illnesses caused by microorganisms such as bacteria, viruses, fungi, and parasites. These diseases can spread directly or indirectly from one individual to another. Transmission occurs through various mechanisms including contact with infected bodily fluids, ingestion of contaminated food or water, inhalation of airborne pathogens, or bites from insects. Communicable diseases remain a significant challenge for public health systems worldwide, particularly in the Global South, where socio-economic and infrastructural limitations increase vulnerability and complicate response mechanisms. Social work research methods provide a lens to understand, document, and address these challenges in a systematic and human-centric manner. The concept of communicable diseases is rooted in epidemiology and public health, but it is equally crucial for social workers who engage with vulnerable populations. Understanding disease transmission, prevention, and control is necessary for designing community-based interventions, policy advocacy, and supporting individuals and families affected by illness. Social work research explores the intersection of health and social factors—such as poverty, education, sanitation, and access to healthcare—thereby emphasizing the social determinants of health in combating communicable diseases. The burden of communicable diseases is disproportionately high in the Global South, a term referring to low- and middle-income countries primarily in Africa, Asia, Latin America, and parts of the Middle East. These regions face systemic challenges such as inadequate healthcare infrastructure, limited health education, poor sanitation, and high _________ _______ _______ ____ _________ _______ ________ ______ _____.
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