Hantavirus in Spain: what is known about the case detected in Galicia and how it is transmitted

In Spain, there is no single "health alert law for imported infectious diseases" with a formalized procedure, but rather a framework of regulations that activate different levels of response. The declaration of a health alert or crisis situation is structured by combining epidemiological surveillance, decisions by health authorities (state and regional), coordination agreements in the Interterritorial Council, and, if necessary, regulations with the force of law or even states of alarm. When the disease is subject to the International Health Regulations (IHR), the WHO and EU mechanisms also intervene through the National Focal Point.

Basic legal framework

The core authorization to adopt exceptional measures lies in the Organic Law 3/1986, which allows health authorities to adopt measures of recognition, treatment, hospitalization, or control in the face of danger to public health, particularly “those considered necessary in case of transmissible risk.” This is complemented by the General Health Law 14/1986, which defines the competencies of the State and autonomous communities (CCAA) in public health.

From a technical standpoint, the key instrument is Royal Decree 2210/1995, which establishes the National Epidemiological Surveillance Network (RENAVE). This network collects and analyzes epidemiological information to detect epidemics, endemics, and risks of national or international interest in communicable diseases, serving as the basis for decision-making by health authorities.

1. Detection and notification of the imported case

The procedure begins with routine epidemiological surveillance:

• Autonomous communities notify RENAVE of notifiable diseases, configured and updated by the State (for example, through Order SSI/445/2015, which modifies the annexes of Royal Decree 2210/1995).
• Certain emerging or imported diseases are regulated by specific orders for mandatory and urgent notification, such as Order SCO/1496/2003 (Severe Acute Respiratory Syndrome) or Order SCO/3870/2006 (avian flu and International Health Regulations).

With this data, the Ministry of Health, through the Coordination Center for Health Alerts and Emergencies (CCAES) and RENAVE, evaluates the risk of spread of the imported disease.

2. State-CCAA coordination and technical bodies

If a significant risk is identified, coordination is activated in the Interterritorial Council of the National Health System (CISNS). Order SND/726/2023 recalls the role of the CISNS Plenary, the Public Health Commission, and the Alerts and Preparedness and Response Plans Committee as technical bodies that develop common strategies against health threats.

Based on this joint evaluation, the following may be adopted:

• Declarations of coordinated actions (DAC) in public health agreed upon in the CISNS, provided for in Article 65 of Law 16/2003 on cohesion and quality of the SNS (mentioned in the Agreement published by Order SND/726/2023).
• Recommendations and technical protocols applied uniformly across all communities.

3. Role of WHO, IHR, and the EU

When the imported disease falls under the International Health Regulations (IHR-2005), Spain must comply with additional obligations:

• Order SCO/3870/2006 designates the National Focal Point with the WHO and adapts RENAVE to the IHR requirements for mandatory and urgent notification of certain cases.
• Resolution of March 25, 2014 publishes the Council of Ministers Agreement that designates ports and airports as “points of entry” with capacity to handle public health emergencies of international concern.

The Ministry of Health also coordinates information exchange with the EU and other States, as provided in Royal Decree 2210/1995.

4. Formal adoption of the “alert” and measures

Depending on the severity and spread of the imported outbreak, different legal instruments may be used:

• Orders from the regional or state health authority, based on Organic Law 3/1986, imposing isolation, quarantines, activity restrictions, or specific controls.
• Declarations of coordinated actions by the CISNS, mandatory for all CCAA, to set common criteria (screenings, mask use, capacity limits, etc.), as described in Order SND/726/2023.
• Urgent law-level regulations (royal decree-laws), when rapid general measures with the force of law are required (e.g., urgent prevention and coordination measures against COVID-19 cited in Order SND/726/2023).
• State of alarm by royal decree if necessary restrictions intensely affect fundamental rights; the COVID-19 experience is expressly mentioned in Order SND/726/2023 as a framework to manage a “health crisis situation.”
• Finally, the Council of Ministers itself may declare or end a “health crisis situation” by agreement, as published in Order SND/726/2023.

5. Summary of the procedural scheme

Overall, the procedure for an alert due to an imported infectious disease follows this general scheme:

• Detection of the imported case through RENAVE and, if applicable, IHR points of entry.
• Technical risk assessment by CCAES, Public Health Commission, and Alerts Committee.
• Activation of coordination in CISNS and, if applicable, approval of DACs.
• International notification to WHO and EU when required by IHR (through the National Focal Point).
• Approval of necessary measures through health authority orders, CISNS agreements, and, if applicable, royal decree-laws or government declaration of state of alarm.

Therefore, there is no single closed “legislative procedure,” but a stepped combination of surveillance, political-technical coordination, and progressive use of different types of legal acts depending on the severity of the imported threat.

According to basic state legislation, the autonomous communities have the ordinary responsibility to organize epidemiological surveillance in their territory, feed public health information systems, and apply control measures against outbreaks, while the State reserves coordination, surveillance of supranational interest, and external health. These competencies are mainly articulated through the General Health Law 14/1986, Organic Law 3/1986, and Royal Decree 2210/1995 which creates the National Epidemiological Surveillance Network. Law 33/2011 General Public Health (cited in several later regulations) updates this framework, although the available information does not detail its specific provisions on surveillance. Based on this basic block, the autonomous faculties in epidemiological studies, disease declaration, control measures, and coordination with the State are defined.

General framework of competencies (Law 14/1986)

The General Health Law establishes that both the State and autonomous communities will organize and develop health actions “within an integral conception of the health system,” and provides that:

• The autonomous communities will create their health services within the framework of the Law and their Statutes.
• They will exercise the competencies assumed in their Statutes and all actions not expressly reserved to the State are understood to be attributed to the autonomous communities.

Directly related to epidemiological surveillance, the law qualifies the performance of epidemiological studies as a “fundamental activity” of the health system, which must be based on “an organized system of health information, surveillance, and epidemiological action.” This implies that autonomous health services must organize resources and structures to:

• Collect and analyze epidemiological information of their population.
• Maintain information systems that allow continuous surveillance.
• Use such information for risk prevention, planning, and health evaluation.

Additionally, among the health system’s actions is expressly included the dissemination of general and specific epidemiological information “to promote detailed knowledge of health problems,” positioning the autonomous communities as key actors in generating and disseminating epidemiological data in their territorial scope.

State competencies and distribution with autonomous communities

The same General Health Law reserves to the State, among others, the following relevant functions for surveillance:

• “Epidemiological and zoonosis surveillance and analysis services, as well as coordination of the competent services of the different Public Health Administrations, in processes or situations that pose a risk to health of national or international incidence or interest.”
• “The establishment of health information systems and the production of statistics of supranational general interest.”
• The establishment of “means and systems of relation” that guarantee reciprocal information and communication between the State Administration and the autonomous communities.

From this scheme, it follows that routine surveillance and day-to-day information management correspond to the autonomous communities, while the State:

• Coordinates and assumes epidemiological surveillance and analysis when the risk has national or international scope.
• Defines common information and statistical systems that communities must feed.

National Epidemiological Surveillance Network and disease declaration

Royal Decree 2210/1995, issued “in accordance with art. 40.12 and 13” of the General Health Law, creates the National Epidemiological Surveillance Network as a basic coordination instrument. This scheme has been updated, among others, by Order SSI/445/2015, which modifies annexes related to:

• List of notifiable diseases.
• Notification modalities.
• Endemic diseases of regional scope.

On this regulatory basis, autonomous communities have the practical obligation to:

• Detect and notify cases of notifiable diseases according to modalities set at the state level.
• Especially monitor endemic diseases of regional scope, which particularly affect their territory.
• Feed the National Network with epidemiological information generated by their health services.

Control measures and extraordinary powers (Organic Law 3/1986)

Organic Law 3/1986, on Special Measures in Public Health, empowers “health authorities of the different Public Administrations,” within their competence, to adopt measures when urgent or necessary health reasons require, such as:

• Recognition, treatment, hospitalization, or control of persons when there are rational indications of danger to public health.
• Measures for control of patients, contacts, and the immediate environment.
• Any other measures considered necessary in case of transmissible risk.

Since autonomous communities are the ordinary health authorities in their territory, this organic law grants them legal coverage to adopt epidemiological control measures (isolations, quarantines, activity restrictions, etc.) always within their competence and without prejudice to the organic law reservations that the Constitutional Court has specified in later rulings.

Update of the public health framework

Law 33/2011, General Public Health, cited in various later provisions (for example, in Resolution of March 25, 2014 on points of entry with capacity to handle public health emergencies and in Order SND/84/2023 on external health), partially repeals and complements the General Health Law. No further information is available in the consulted sources about the details of its specific provisions on surveillance, but its function is to strengthen the organization of public health and coordination between the State and communities in areas such as international emergencies and external health.

The current composition of the Parliament of Galicia comes from the regional elections held on February 18, 2024. According to available information, the PPdeG governs with an absolute majority, holding 40 deputies; the PSdeG has 9 seats, and Democracia Ourensana holds 1 seat. The remaining seats in the Chamber correspond to the BNG, although the consulted sources do not explicitly state the exact number of seats this party holds.

Elections in which the current composition was chosen

The current legislature begins after the Galician regional elections of February 18, 2024, explicitly mentioned in a Senate note about the designation of Galician regional senators: it indicates that three of the 19 Galician senators are appointed by the Parliament of Galicia “after the regional elections of February 18, 2024” (see Senate notes at Senate note, [link 2], [link 3], [link 4]).

After those elections, the Parliament elected Alfonso Rueda as president of the Xunta in the investiture session on April 11, 2024, according to the Xunta’s official note (Xunta note).

Seat distribution by parties

Available journalistic and political sources allow precise detailing of part of the seat distribution and, for another part, only indirectly:

• PPdeG: a Sigma Dos survey published by the newspaper Demócrata indicates that the PP “would repeat the 40 current deputies” and that the absolute majority in Galicia is 38 seats (Galicia survey – Sigma Dos). From this, it is deduced that the PP currently holds 40 seats.
• PSdeG-PSOE: several reports on internal changes in the socialist group indicate that in the 2024 regional elections the PSdeG “reduced from 14 to 9 its seats in the Galician Chamber” (Elena Espinosa’s departure, prior announcement), so the group has 9 deputies.
• Democracia Ourensana (DO): various electoral and parliamentary analyses reiterate that Democracia Ourensana entered for the first time in 2024 and “would maintain its single seat” or “would retain its only seat” in mid-term projections (Sondaxe survey – Galicia, Galicia electoral analysis 2025, information on parliamentary resolutions).
• BNG: the same surveys describe the BNG as a stable second parliamentary force and assign it an estimated 25 seats in the chamber. However, those 25 appear within a table of a survey by Sondaxe, not as official result data, so the sources used do not explicitly and directly record the exact number of nationalist seats from the 2024 count. What is confirmed is that the BNG is the second group in the Chamber and occupies all remaining seats against PP, PSdeG, and DO.

In summary, with the available information it can be stated with certainty that the Parliament of Galicia elected on February 18, 2024, is composed of:

• PPdeG: 40 seats.
• PSdeG-PSOE: 9 seats.
• Democracia Ourensana: 1 seat.
• BNG: the remaining seats in the Chamber, although without explicit official figures in the consulted sources.

No further direct numerical detail is available in the sources handled by the newspaper Demócrata and the cited institutional documents, so any additional precision about the exact number of BNG deputies would require consulting the official complete election results, which are not transcribed in the accessed texts.

Other related content

Regarding recent Galician politics and its fit in the state context, the following pieces from the newspaper Demócrata and other institutions can be consulted: on Galician surveys and PP–BNG–PSdeG balance (Sondaxe Galicia, Sondaxe analysis 2025, Sigma Dos Galicia, voting intention in Galician cities, BNG substitution, PP position on financing, water plan, AP-9 accident and plenary), as well as state and regional comparative analyses: Aragon elections 2026, Castilla y León 2026, Andalusia 2026, Andalusian provincial tracking, Andalusia historical, group financing in Andalusia, Andalusian Parliament composition, and many others such as Congress analyses and state surveys (Congress renewal, Congress resignations, Permanent Deputation, Court of Auditors, Official Secrets Commission, Senate seat rearrangement, new Congress Council).

In a European and comparative key, the official results of the 2024 European elections can also be seen in the BOE (JEC agreement) or the general analysis on the composition of the European Parliament (Electronic Administration analysis), as well as international coverage in Demócrata (Syria, Chile, Trump–Meloni–Vatican tension), which serve as context though they do not affect the composition of the Galician Parliament.