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The coronavirus disease (COVID-19) global pandemic is ongoing, with Europe and the Americas the current epicentres of transmission. As at 1 January, 2021, over 82 million cases and 1.8 million deaths have been reported globally [1,2]. In Europe alone, the number of cases reported has now passed 26 million, with over 580,000 laboratory-confirmed COVID-19 deaths [3,4]. As many COVID-19 cases and deaths may not be confirmed by virological testing, and as the pandemic causes a range of indirect and collateral harms, the officially reported figures of laboratory-confirmed COVID-19 cases and deaths represent only a part of the total disease, mortality and overall public health burden associated with the pandemic. Here we report some noteworthy estimates of a marked increase in excess all-cause mortality in Europe coinciding with a steep second wave of COVID-19 in many countries since September 2020.

Objectives: Weekly monitoring of European all-cause excess mortality, the EuroMOMO network, observed high excess mortality during the influenza B/Yamagata dominated 2017/18 winter season, especially among elderly. We describe all-cause excess and influenza-attributable mortality during the season 2017/18 in Europe. Methods: Based on weekly reporting of mortality from 24 European countries or sub-national regions, representing 60% of the European population excluding the Russian and Turkish parts of Europe, we estimated age stratified all-cause excess morality using the EuroMOMO model. In addition, age stratified all-cause influenza-attributable mortality was estimated using the FluMOMO algorithm, incorporating influenza activity based on clinical and virological surveillance data, and adjusting for extreme temperatures. Results: Excess mortality was mainly attributable to influenza activity from December 2017 to April 2018, but also due to exceptionally low temperatures in February-March 2018. The pattern and extent of mortality excess was similar to the previous A(H3N2) dominated seasons, 2014/15 and 2016/17. The 2017/18 overall all-cause influenza-attributable mortality was estimated to be 25.4 (95%CI 25.0-25.8) per 100,000 population; 118.2 (116.4-119.9) for persons aged 65. Extending to the European population this translates into over-all 152,000 deaths. Conclusions: The high mortality among elderly was unexpected in an influenza B dominated season, which commonly are considered to cause mild illness, mainly among children. Even though A(H3N2) also circulated in the 2017/18 season and may have contributed to the excess mortality among the elderly, the common perception of influenza B only having a modest impact on excess mortality in the older population may need to be reconsidered. info:eu-repo/semantics/publishedVersion

Fentanyl is a synthetic opioid analgesic historically used as a pain reliever and an anaesthetic. Recent concerns have arisen around the illicit use of fentanyl and its analogues in a number of European countries, linked to their high potency and associated risk of fatal overdose. Evidence has been emerging from Estonia for over a decade of entrenched patterns of fentanyl use, including injection of the drug and hundreds of overdose deaths. More recently, reports indicate that both fentanyl and 3-methylfentanyl (TMF) have been marketed as a replacement for heroin in European countries (e.g. Bulgaria, Slovakia) affected by heroin shortages. In addition, Germany, Finland and the United Kingdom, reported new outbreaks of fentanyl-related deaths. This combination of increasing mortality data alongside law enforcement intelligence suggesting both diversion and illicit production of fentanyls, prompted wider investigation using a targeted multi-source data collection exercise and analysis. This identified that in the European context, fentanyls are 'low use but high risk/harm' substances. Evidence shows that Estonia stands out as having an endemic problem, while the use of fentanyls in other European countries appears to be geographically localised. Developments in illicit supply of fentanyls reflect the complexity of Europe's contemporary drug market: manifesting illicit production and use, the diversion and misuse of medicines, and the online sale of non-controlled new psychoactive substances. Likewise effective and integrated responses will need to address fentanyl production, diversion as well as ensuring the availability of harm reduction measures to users.

Aims and methods: Being easily available and having good coverage and comparability, official mortality statistics are used very widely. This in turn is because the definitions of mortality and methods of pertinent data collection are coordinated worldwide by the World Health Organization. In Estonia, registered cerebrovascular mortality has dropped 50% since 2000. A less dramatic decrease has been observed in nearly all EU Member States. To find out if this development can be explained by changing certification and coding practices, we counted all mentions of cerebrovascular diseases in the Estonian Causes of Death Registry database between 2004 and 2013 and analyzed the selection of the underlying cause of death. Results: We found that the sharp decrease in registered cerebrovascular mortality was by a half due to an increased selection of hypertension as the underlying cause of death. In cases where a cerebrovascular disease was mentioned and selected the underlying cause of death, the mean number of diagnoses per record was 2.45, in cases where a cerebrovascular disease was mentioned, but hypertension selected the underlying cause of death, the mean number of diagnoses was 3.15. Conclusions: The choice of the underlying cause of death registered in official statistics depends on the level of details provided in a death certificate, as well as updates to coding rules and use of modern quality assurance instruments in data production.

Since December 2016, excess all-cause mortality was observed in many European countries, especially among people aged ≥ 65 years. We estimated all-cause and influenza-attributable mortality in 19 European countries/regions. Excess mortality was primarily explained by circulation of influenza virus A(H3N2). Cold weather snaps contributed in some countries. The pattern was similar to the last major influenza A(H3N2) season in 2014/15 in Europe, although starting earlier in line with the early influenza season start. info:eu-repo/semantics/publishedVersion

Since December 2014 and up to February 2015, the weekly number of excess deaths from all-causes among individuals?≥?65 years of age in 14 European countries have been significantly higher than in the four previous winter seasons. The rise in unspecified excess mortality coincides with increased proportion of influenza detection in the European influenza surveillance schemes with a main predominance of influenza A(H3N2) viruses seen throughout Europe in the current season, though cold snaps and other respiratory infections may also have had an effect.