The World Maritime Health Organisation confirmed late Thursday what the harbour had whispered for three days: the cluster of respiratory cases among passengers of the MV Estrella de Llevant is consistent with hantavirus. Four passengers remain at the Clínica Sant Cardenal Marín. The vessel sits under precautionary quarantine at berth seven of the Cordoba commercial pier, and the Port Sanitation Council has been in emergency session since Thursday evening.

Dr. Elsa Pontremoli, Chief Medical Officer of the Kingdom, urged the capital to keep its composure. Contact tracing, she said, is under way; laboratory confirmation of the precise strain is expected within forty-eight hours. She declined to specify how many of the vessel's company have so far been traced, noting only that the figure is 'well within the reach of the existing public-health apparatus.'

The Herald has confirmed that the Port Sanitation Council met without the Prime Minister's office present at the first hour, a circumstance unusual enough to merit note. A Crown Ministry communication issued before midnight thanked the Council for its diligence and pledged 'whatever resources prove necessary.'

Berth seven, which ordinarily handles the Cordoba line's coastal traffic, has been closed to all movements save the medical launches. Passengers not yet disembarked are being held aboard; those who went ashore on Tuesday are the subject of the tracing effort now under way through the Clínica and the district health offices.

The vessel's master, through counsel, has cooperated with the Council's instructions. No member of the crew has so far presented symptoms. The Herald understands that the question of whether the ship made any irregular call before entering Almarian waters is among the matters the Council wishes to clarify before issuing its preliminary report.

The capital's older merchants remember the cholera alarm of 1911 and the measures that followed it. What is required now, as then, is the quiet competence of the harbour authorities and the patience of the citizenry — neither of which is in short supply, though both have been tested this spring.