The Coastal Comeback of a Global Threat

It begins quietly—with a bite you barely notice. But in places like Mombasa, Likoni, Nyali, and Kisauni, a once-quiet virus is roaring back. The World Health Organization (WHO) has issued a stark warning: chikungunya, a mosquito-borne virus that devastated half a million lives two decades ago, is re-emerging—fast and furious.

The warning isn’t just a whisper of concern; it’s a global siren. With over 5.6 billion people now estimated to be living in chikungunya-risk zones across 119 countries, the WHO fears a déjà vu of the 2004–2005 epidemic, which began in small Indian Ocean islands and later spread like wildfire around the world. That nightmare, it seems, is ready for an encore—and Kenya is back on the frontlines.

Mombasa: Ground Zero in Kenya

Kenya’s own struggle with the virus reignited in June 2025 when 25 out of 45 suspected cases in Mombasa tested positive. The epicenters? Mvita, Nyali, Kisauni, and Likoni.

According to the Kenya Medical Research Institute (KEMRI), the Aedes aegypti and Aedes albopictus mosquitoes—those sneaky, daytime biters—are back in action, carrying the virus from household to household with terrifying efficiency. While malaria-bearing mosquitoes attack mostly at night, these ones strike during daylight hours, often indoors, and usually go unnoticed until symptoms emerge.

From Fever to Disability: What You Should Know

Unlike many other tropical illnesses, chikungunya doesn’t just pass through you. It lingers, leaving victims with intense, persistent joint pain that can last months—or even years. Some may dismiss it as “just a fever,” but the reality is far more brutal.

Common symptoms include:

• -Sudden high fever

• -Severe joint and muscle pain

• -Swelling in the joints

• -Rashes, headaches, fatigue, and nausea

Though the disease is generally self-limiting, vulnerable populations—especially the elderly, children, and those with underlying health conditions—face increased risk of complications, including organ damage and death.

No Cure, Just Care: The Global Dilemma

Currently, no vaccine or specific antiviral treatment exists for chikungunya. Patients are advised to manage symptoms using paracetamol (or acetaminophen) for pain and fever. Adequate hydration, rest, and ongoing monitoring are also crucial.

The WHO is urging countries—especially those in tropical and sub-tropical regions—to adopt aggressive vector control strategies and improve public awareness. The goal? Prevent mosquito bites before they happen. That means:

• -Wearing long-sleeved clothing

• -Using mosquito repellents with DEET, IR3535, or icaridin

• -Installing window and door screens

• -Sleeping under mosquito nets—even during daytime naps

History Repeats—Or Does It?

The echoes of 2005 are too loud to ignore. From Mauritius and Mayotte to La Réunion and now Kenya, chikungunya is tracing its old path—but on a larger, potentially deadlier scale. WHO’s Diana Rojas Alvarez didn't mince words when she said, “We are seeing history repeat itself.” And she’s not wrong.

But the global community, and especially countries like Kenya that have seen this before, have a chance to intervene before it’s too late. Prevention is no longer optional—it’s urgent. As the virus moves, so must the response.