[Lessons learnt from COVID-19 surveillance. Urgent need for a new public health surveillance. SESPAS Report 2022].

In this article we provide the most important epidemiological aspects in the first phases of the pandemic and some preliminary reflections from the Coordinating Centre for Health Alerts and Emergencies, the unit that has coordinated surveillance at the national level. COVID-19 has brought to light the weaknesses in the surveillance system and how difficult it is to manage a health crisis in the absence of a robust public health structure. The commitment of public health professionals during this epidemic has made up for the lack of resources in many occasions, and has evidenced the need to incorporate new professional profiles to surveillance teams.

[The impact of COVID-19 on sick leave of the persons working in nursing homes in Spain. Usefulness of sick leave for the surveillance of the pandemic evolution.].

Objective: The nursing homes represented high-risk settings for SARS-CoV-2 infection, both for residents and for the employees. The COVID-19 impact on long-term care facilities (LTCFs) is evaluated, measured through the employees sick leave (SL). The pandemic evolution in the general population aged between 16 and 65 years was analyzed together with the sick leave to assess the latter as a complementary indicator of the SARS-CoV-2 surveillance.

[COVID-19 outbreaks in occupational settings in Spain, one year of follow-up (June 2020-June 2021).].

COVID-19 outbreak surveillance in Spain was established with the main objective of characterizing outbreaks and the settings in which they occurred, in order to identify those population groups at highest risk to support them with the implementation of preventive and control measures. Between June 2020 and June 2021, 55,824 outbreaks were reported, with 414,882 cases in all settings. About 12.

Incidence of hepatitis C virus (HCV) in a multicenter cohort of HIV-positive patients in Spain 2004-2011: increasing rates of HCV diagnosis but not of HCV seroconversions.

Objectives: We aim to describe rates and risk factors of Hepatitis C Virus (HCV) diagnoses, follow-up HCV testing and HCV seroconversion from 2004-2011 in a cohort of HIV-positive persons in Spain.

Methods: CoRIS is a multicentre, open and prospective cohort recruiting adult HIV-positive patients naïve to antiretroviral therapy. We analysed patients with at least one negative and one follow-up HCV serology.

[Analysis of complaints in primary care using statistical process control].

Objective: To analyze patient complaints in a Primary Health Care District (PHCD) using statistical process control methods compared to multivariate methods, as regards their results and feasibility of application in this context.

Material And Method: Descriptive study based on an aggregate analysis of administrative complaints.

Setting: Complaints received between January 2005 and August 2008 in the Customer Management Department in the 3rd PHCD Management Office, Madrid Health Services.

Lung cancer mortality in towns near paper, pulp and board industries in Spain: a point source pollution study.

Background: This study sought to ascertain whether there might be excess lung cancer mortality among the population residing in the vicinity of Spanish paper and board industries which report their emissions to the European Pollutant Emission Register (EPER).

Methods: This was an ecological study that modelled the Standardised Mortality Ratio (SMR) for lung cancer in 8073 Spanish towns over the period 1994-2003. Population exposure to industrial pollution was estimated on the basis of distance from town of residence to pollution source.