Response

Hondius Andes HPS Care: Supportive Protocols, ECMO Critical for Patient Outcomes

As medical teams manage the hantavirus outbreak aboard the MV Hondius Andes, focus remains on advanced supportive care, including mechanical ventilation and ECMO, to mitigate the severe cardiopulmonary symptoms characteristic of Hantavirus Pulmonary Syndrome (HPS).

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Hantavirus Cruise Desk

Outbreak Tracking Team · August 28, 2026 · 6 min read

Hondius Andes HPS Care: Supportive Protocols, ECMO Critical for Patient Outcomes

MV Hondius Andes: Navigating HPS Clinical Management

The ongoing hantavirus outbreak on the MV Hondius Andes, anchored off Praia, Cape Verde, continues to challenge medical response teams, with clinical management protocols for Hantavirus Pulmonary Syndrome (HPS) and Hantavirus Cardiopulmonary Syndrome (HCPS) being paramount. The core strategy remains aggressive supportive care, addressing the rapid progression of respiratory and cardiac compromise that defines this severe disease. HPS, caused by infection with New World hantaviruses such as Sin Nombre virus, is characterized by sudden onset of fever, myalgia. Gastrointestinal symptoms, rapidly progressing to non-cardiogenic pulmonary edema, hypoxemia, and myocardial dysfunction.Mortality rates for HPS can be substantial, with figures from past outbreaks in other regions often cited as bigly. Specific figures for the Hondius Andes incident are not yet released by relevant health authorities as of 2026-08-28. The absence of specific antiviral treatments makes supportive care the cornerstone of clinical intervention.

Core Principles of HPS Supportive Care

The primary goals of HPS management are to maintain adequate oxygenation and perfusion while the patient's immune system combats the viral infection. This typically involves several critical components:

Oxygen Therapy and Mechanical Ventilation

Patients often require supplemental oxygen as hypoxemia develops. As pulmonary edema progresses, the need for advanced respiratory support becomes urgent. Non-invasive ventilation (NIV) may be attempted in early stages, but several patients quickly require invasive mechanical ventilation. Ventilatory strategies focus on lung-protective measures, including low tidal volumes and appropriate positive end-expiratory pressure (PEEP), to minimize ventilator-induced lung injury in already compromised lungs.

Fluid Management

Careful fluid management is crucial. HPS is characterized by increased capillary permeability, leading to fluid extravasation into the pulmonary interstitium and alveoli. While intravascular volume depletion due to this third-spacing can occur, aggressive fluid resuscitation can exacerbate pulmonary edema. Clinicians aim for a conservative fluid strategy, balancing the need for adequate organ perfusion with the risk of worsening respiratory compromise.

Hemodynamic Support

Myocardial depression is a hallmark of HCPS, contributing to cardiogenic shock. Vasoactive agents, such as norepinephrine or dopamine, may be required to maintain mean arterial pressure and ensure adequate tissue perfusion. Inotropes like dobutamine might be considered to improve cardiac contractility if severe myocardial dysfunction is evident, per guidance from organizations like the World Health Organization (WHO).

The Role of ECMO

Extracorporeal Membrane Oxygenation (ECMO) has emerged as a life-saving intervention for patients with severe, refractory HPS-induced respiratory or cardiopulmonary failure. ECMO provides temporary support for the heart and/or lungs, allowing these organs to rest and recover from severe injury. Specifically, veno-venous (VV) ECMO provides respiratory support, while veno-arterial (VA) ECMO supports both cardiac and respiratory function. Onboard the MV Hondius Andes, or during medical evacuations to shore facilities, the availability and timely initiation of ECMO are critical considerations. The logistics of deploying and managing ECMO in a maritime or temporary field hospital setting are complex, requiring highly specialized equipment, trained personnel, and continuous monitoring. Medical professionals associated with the international response have indicated that ECMO capabilities have been a key part of preparedness for severe cases, as reported by news agencies covering the unfolding situation.

Mortality Drivers and Prognostic Factors

Mortality in HPS is primarily driven by progressive respiratory failure, often complicated by cardiogenic shock. Factors associated with a poorer prognosis include rapid progression to shock, severe hypoxemia requiring high levels of ventilatory support, and bigly myocardial dysfunction. Early recognition, aggressive supportive care, and timely escalation to advanced interventions like ECMO are vital in improving outcomes. The experience from previous hantavirus outbreaks globally, as documented by institutions such as the US Centers for Disease Control and Prevention (CDC), consistently highlights these elements. As of 2026-08-28, health authorities, including Africa CDC and the European Centre for Disease Prevention and Control (ECDC), continue to monitor the situation closely, providing guidance on clinical management and patient transfer protocols. The coordinated international medical effort aims to ensure that all individuals affected by HPS receive the highest level of care possible under challenging circumstances.