El Niño is a recurring climate pattern linked to changes in ocean temperatures in the tropical Pacific. It can influence atmospheric circulation and shift rainfall patterns in many parts of the world, including East Africa. Its effects are not uniform: the timing, intensity, and distribution of rain can differ between seasons and locations. An El Niño forecast therefore signals a possibility of unusual conditions, not a guarantee that every area will experience the same amount of rainfall or the same hazards.
In Kenya’s 21 counties identified as being at risk, heavier-than-usual rain could raise the likelihood of riverine or flash flooding and, in susceptible areas, landslides. Floodwater and slope failures may damage homes, health facilities, roads, bridges, and other essential infrastructure. Communities can be displaced, while blocked routes may delay access to clinics and interrupt the delivery of medicines, laboratory reagents, specimens, fuel, and other supplies. Damage to water and sanitation systems can also limit access to safe drinking water and hygienic facilities, increasing pressure on households and local services.
These disruptions have direct public-health implications. Contaminated water and inadequate sanitation can contribute to diarrhoeal and other waterborne illnesses. Overcrowding in temporary shelters, or movement of displaced people into unfamiliar settings, may increase the risk of outbreaks of communicable diseases. Floods and landslides can also cause injuries and make urgent care harder to reach. When transport, staffing, utilities, or supply chains are interrupted, routine services—including antenatal care, immunisation, chronic disease management, and diagnostic testing—may be delayed or missed.
Preparedness should be guided by county-level assessments, local knowledge, and current official forecasts and alerts. Exposure varies with terrain, drainage, river systems, settlement patterns, infrastructure, and the timing of rainfall; even neighbouring communities may face different risks. Laboratory and health teams should use relevant county plans and coordinate with public-health and emergency-management authorities, rather than assuming all 21 counties, or all communities within them, will be affected equally. Monitoring changing conditions allows response measures to be adapted as more local information becomes available.
El Niño-related heavy rainfall can affect medical laboratories through both direct damage and wider service disruptions. Floodwater may enter laboratory buildings, damage electrical systems, benches, refrigerators, analyzers, and information technology equipment, or make rooms unsafe to use. Even when a facility remains intact, blocked roads, damaged bridges, and interruptions to public services can undermine routine operations. Laboratories should consider which functions could continue safely if rooms, instruments, or access routes become unavailable.
Reliable power and clean water are essential for many testing processes, equipment, cleaning tasks, and infection-prevention measures. Outages can interrupt assays, compromise temperature-controlled storage, and require laboratories to assess whether affected specimens or reagents remain usable. Flooding may also disrupt specimen transport, delay referral testing, and prevent timely delivery of reagents and consumables. Waste collection can be interrupted, creating risks if infectious or chemical waste accumulates. Staff may be unable to travel to work, leaving fewer trained people available for critical tasks. Clear communication with clinicians, transport providers, and public-health authorities can help coordinate priorities, report service limitations, and arrange alternatives.
Weather-related changes can also alter disease patterns and increase the risk of outbreaks. Flooding and disrupted water and sanitation systems may contribute to infections requiring laboratory investigation, while population displacement can place additional demands on health services. Testing volumes may rise suddenly as clinicians seek to identify cases and public-health teams monitor transmission. Timely, accurate results support patient care and response decisions, but pressure to increase throughput should not override quality safeguards. Laboratories need to protect specimen integrity during collection, packaging, storage, and transport, documenting delays or temperature excursions and following validated procedures for acceptance and rejection.
Biosafety and infection-prevention practices remain important during emergencies, when crowded workspaces, disrupted waste services, or altered workflows can increase exposure risks. Staff should use appropriate protective measures, maintain safe handling and decontamination procedures, and escalate hazards promptly. When equipment, utilities, supplies, or staffing are constrained, results should be interpreted and reported within the limits of the methods and operating conditions. Communicating uncertainty and any relevant limitations helps clinicians and authorities make informed decisions without overstating what the available testing can establish.
Continuing professional development (CPD) helps medical laboratory professionals turn general emergency plans into practical skills for severe weather events. Before disruption occurs, learning can strengthen recognition of priority outbreak signals, including unusual increases in specimen volumes, changes in test positivity, or clusters of illness reported by clinical teams. Staff can also review specimen selection, collection requirements, packaging, storage, and transport, so that testing remains appropriate when referral routes or collection conditions change. Scenario-based exercises are particularly useful: they allow teams to practise decisions using the staffing, equipment, and infrastructure actually available at their facility.
During an emergency, CPD should reinforce quality assurance under pressure, safe work practices, and clear documentation. Refresher training in biosafety, risk assessment, spill response, waste handling, and personal protective equipment can help protect staff and patients when workloads rise or utilities are unreliable. Competence in recording results, documenting limitations, and reporting urgent findings supports timely clinical action and public-health surveillance. Training should also cover emergency stock management, including monitoring consumption, prioritizing essential reagents, checking expiry dates, and following approved procedures when supplies are constrained. Clear communication protocols help laboratory teams coordinate with clinicians, facility managers, surveillance officers, and referral laboratories.
After severe weather, CPD can support recovery by helping staff assess service interruptions, identify quality or safety concerns, restore routine workflows, and contribute to reviews of what worked and what needs improvement. These activities strengthen continuity planning, including backup power, alternative communication channels, specimen referral arrangements, and role allocation. The value of CPD is not measured simply by completed learning hours; it depends on whether staff can apply knowledge reliably and work together under changing conditions. Professionals should use current guidance from relevant Kenyan health authorities and align learning with local hazards, laboratory capacity, referral pathways, and available resources. Regular drills, peer learning, and documented competency checks can then translate guidance into a coordinated, practical response before, during, and after disruption.
Med Skill Hub can serve as a place for laboratory professionals to pursue relevant continuing professional development (CPD) and connect knowledge with preparedness for El Niño-related pressures. Rather than assuming that any single course covers every operational need, learners should review available learning and select modules aligned with their responsibilities and their laboratory’s context. Priority topics may include emergency laboratory operations, outbreak detection, quality management, biosafety, and professional practice.
Before enrolling or setting learning goals, staff can identify the risks relevant to their facility and the communities it serves. Heavy rainfall and flooding may disrupt access, power, water, supply chains, and specimen transport, while changing disease patterns can increase demands on surveillance and diagnostic services. CPD learning is useful when linked to these practical concerns. Professionals should record completed CPDs in accordance with applicable employer, regulatory, or professional requirements, and discuss key lessons with colleagues. Such discussion can help teams compare learning with existing procedures, clarify responsibilities, and identify where guidance needs local interpretation.
Translate learning into a practical review of laboratory readiness. Check the continuity plan for disruption scenarios, including staffing arrangements, alternate workflows, and escalation routes. Verify critical supplies, storage conditions, backup power, equipment safeguards, and maintenance arrangements. Confirm specimen referral pathways and reporting contacts, including how updates will be shared if usual communication channels fail. Teams can also identify staff training gaps, such as safe handling, data recording, or use of contingency procedures, then agree on steps to address them. Assign responsibilities and review dates so that actions are followed through, rather than left as recommendations. Conditions vary between counties and facilities, so preparedness measures should reflect local hazards, resources, referral networks, and public health guidance. Med Skill Hub CPDs can support learning, but their value depends on translating knowledge into coordinated, locally appropriate action.
