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Weather and Access to Cities Impact Tuberculosis Prevalence, Study Finds

Weather and Access to Cities Impact Tuberculosis Prevalence, Study Finds
Local weather conditions, access to cities can impact prevalence of tuberculosis, study finds · The Hindu

Scientists studied tuberculosis (TB) in Africa, finding that local weather and city access affect its spread.

TB is a lung disease spread through the air when infected people cough or sneeze.

The research looked at where TB is most common, using maps to see patterns.

Higher temperatures, more rain, and easier access to cities were linked to more TB cases, while higher altitudes had fewer cases.

This information can help health workers focus resources where they're most needed, using more targeted approaches instead of general plans.

Key facts

Study Focus
14 African nations, including Nigeria and Mozambique
Participants
Over 1.5 million people across 50 surveys
Key Findings
Temperature, rainfall, access to cities positively linked to TB prevalence; higher altitude linked to lower prevalence
Methodology
Local-level mapping, breaking countries into 5 sq km grids
Lead Researchers
Alemneh Liyew and Kefyalew Alene from Curtin University
Published
May 27, 2025

Sources

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