Four months after two powerful earthquakes devastated northern Venezuela, aid workers say the country is confronting a deepening health crisis. Chronic illness, disrupted medical care, and psychological distress were already widespread before the quakes and have now become even more difficult to address.

The magnitude 7.2 and 7.5 earthquakes struck June 24, less than a minute apart, killing more than 6,300 people and displacing tens of thousands. La Guaira, a coastal state among the hardest-hit areas, suffered widespread building damage, and roughly 24,000 people remain in temporary shelters across affected states.

Feliciano Reyna, founder and head of the Caracas-based humanitarian organization Acción Solidaria , said the earthquakes struck a health system and humanitarian response already under severe strain.…