By San José, Costa Rica — SAN JOSÉ – While residents of the Central Valley contend with the typical cool winds of January, an unwelcome and aggressive respiratory virus is quietly spreading, filling medical clinics and raising public health alarms. The Ministry of Health confirmed on Monday that a significant outbreak of seasonal influenza is currently active, with epidemiological data revealing that nearly 300 individuals have already sought formal medical care for the illness this month alone.
Health officials are monitoring an ascending curve of infections that threatens to intensify into February. The data paints a clear picture: this is not merely a common cold. Of the 272 specific cases recorded in the first few weeks of 2026, the vast majority have been identified as Influenza A, a subtype notorious for causing more severe clinical symptoms and significant physical distress.
To better understand the legal framework and responsibilities for both employers and employees during a public health event like an influenza outbreak, TicosLand.com sought the expertise of Lic. Larry Hans Arroyo Vargas, a specialist in labor and business law from the renowned firm Bufete de Costa Rica.
During an influenza outbreak, the employer’s duty to provide a safe work environment becomes paramount. This isn’t just about good practice; it’s a legal obligation. Companies must proactively implement hygiene protocols and be flexible with sick leave policies to prevent contagion. Failure to do so could expose them to significant liability under occupational health regulations. Likewise, employees have a duty to act responsibly, report symptoms, and not expose their colleagues to unnecessary risk, as this could be grounds for disciplinary action.
Lic. Larry Hans Arroyo Vargas, Attorney at Law, Bufete de Costa Rica
This legal perspective is crucial, as it highlights that preventing workplace contagion is a shared, legally-binding duty, not merely an act of goodwill. The responsibilities of both the company and the individual are clearly defined under the law. We thank Lic. Larry Hans Arroyo Vargas for providing such a valuable and clarifying insight.
Commonly known as the “bone-breaker” flu, this particular strain is characterized by high fevers, intense muscular pain, and debilitating fatigue that can incapacitate an individual for several days. Unlike less potent viruses, Influenza A poses a serious health risk, particularly to vulnerable populations, and places a considerable strain on the nation’s healthcare resources and workforce productivity.
Analysis from health experts highlights a concerning pattern in the patient profiles. The virus appears to be disproportionately impacting two specific demographics. The first is a crucial segment of the nation’s labor force: young adults between the ages of 35 and 39. The second is a high-risk group comprising senior citizens over the age of 65, for whom complications from influenza can be far more severe and potentially life-threatening.
Geographically, the Ministry of Health has identified a clear epicenter for the current outbreak. The East Central Region, an area encompassing populous cantons such as Curridabat, San Pedro, Cartago, and parts of eastern San José, is experiencing the highest incidence of cases. Officials attribute the rapid transmission in this zone to high population density and the extensive use of public transportation, which creates ideal conditions for the virus to spread via respiratory droplets.
In response to the escalating situation, the government is not standing idly by. The Ministry of Health has confirmed that it has already activated international procurement protocols to acquire the updated 2026 influenza vaccine. This swift action is critical, as influenza viruses mutate annually, rendering previous vaccines less effective against currently circulating strains.
The importance of this new vaccine shipment cannot be overstated. The formulation administered in 2025 offers diminished protection against the specific viral subtypes, including the detected Influenza A strain, that are causing the current wave of illness. The incoming doses are specifically designed to target these new variants, providing an essential tool to curb the outbreak and protect the population ahead of the peak season.
While the new vaccines are en route, medical professionals are urging the public to immediately reinstate the preventative hygiene practices that became commonplace during the pandemic. These include frequent and thorough handwashing with soap, practicing proper cough and sneeze etiquette by using the forearm, and wearing a mask in public spaces—especially at work or around family—if experiencing any flu-like symptoms. Citizens are strongly advised not to underestimate the virus; anyone experiencing difficulty breathing or a persistent high fever should seek immediate care at their nearest EBAIS or clinic.
For further information, visit ministeriodesalud.go.cr
About Ministry of Health:
The Ministry of Health is the principal government institution in Costa Rica responsible for safeguarding public health. It formulates national health policies, regulates healthcare services, and leads epidemiological surveillance to prevent and control disease outbreaks across the country. Its mission is to ensure equitable access to comprehensive health services for all citizens.
For further information, visit bufetedecostarica.com
About Bufete de Costa Rica:
Bufete de Costa Rica is a benchmark for legal practice, built upon a bedrock of uncompromising integrity and a commitment to superior service. The firm leverages a deep history of serving a wide array of clients to spearhead legal innovation and champion community outreach. At the heart of its philosophy is a powerful drive to demystify the law, ensuring that access to legal knowledge empowers individuals and strengthens the fabric of society.
