[Interrupting the chains of transmission of COVID-19 in Italy: survey among the Prevention Departments]

BACKGROUND

the ability to implement effective preventive and control measures is rooted in public health surveillance to promptly identify and isolate contagious patients.

OBJECTIVES

to describe some organizational aspects and resources involved in the control of COVID-19 pandemic.

DESIGN

observational cross sectional study.

SETTING AND PARTICIPANTS

a survey of methods and tools adopted by the competent service (Prevention department) in the Local public health units (LHU) of the regional Health services has been performed in May 2020. The survey collected data related to activities carried out during the month of April 2020 on the surveillance system for collection of suspected cases, their virological ascertainment, the isolation procedures and contact-tracing activities by means of an online questionnaire filled in by the public health structure of the regional health system. A convenience sample of Prevention departments was recruited.

RESULTS

in 44 Prevention departments of 14 Regions/Autonomous Provinces (caring for 40% of the population residing in Italy), different services were swiftly engaged in pandemic response. Reports of suspected cases were about 3 times the number of confirmed cases in the same month. Local reporting form was used in 46% of the LHUs while a regional form was available in 42% of the Departments (in 9/14 Regions). In one fourth the forms were not always used and 2% had no forms for the reporting of suspected cases. Data were recorded in 52% of LHUs on local databases, while in 20% a regional database (in 7 Regions) had been created. A proportion of 11% did not record the data for further elaboration. The virological assessment with nasopharyngeal swabs out of the hospital setting was carried out on the average in 7 points in each LHU (median 5) and the average daily capacity was 350 (71 per 100,000) swabs. The rate of subjects newly tested during the month of April was of 893 per 100,000 new people. Data collected at the swabbing were recorded on a regional platform in 17 LHUs (39%) of 8 Regions. In 7% LHUs only positive specimens were recorded electronically. Local files were used in 27% LHUs. The interview with confirmed cases was carried out with a local questionnaire in 52% LHUs, while 14% stated that a standardized form was not used. The data collected about cases were recorded on a regional IT platform in 30% Departments (in 8 Regions) and in 41% data were registered only locally. For each confirmed case in April, a median of 4 contacts were identified. Only 13 (30%) Departments in 9 Regions have registered contact data on a regional database. Ten Departments (23%) have only hard copies, while 56% recorded data on local databases. About 5 health professionals for 100,000 resident population were involved in each LHU in each of the following activities as receiving reports of suspected cases, swabs collection, interviews of cases and contact identifications.

CONCLUSIONS

the pandemic required rapidly a great organizational effort and great flexibility to increase response capacity, which now must be strengthened and maintained. Several different tools (forms and electronic files) have been developed in each LHU and used for the same surveillance operational processes with a loss in local efficiency. The inhomogeneous data collection and recording is an obstacle for further analyses and risk identifications and is a missed opportunity for the advancement of our knowledge on pandemic epidemiology analysis. In Italy, updating the pandemic response plans is the priority, at national, regional and local level, and the occasion to fill the gaps and to improve surveillance systems to the interruption of COVID-19 transmission.

Influenza vaccine effectiveness studies in Europe: SWOT analysis of DRIVE collaborating sites

Background

DRIVE is a European public-private partnership that aims at creating a network that works on high quality, brand-specific effectiveness estimates for all influenza vaccines used in the EU each season. The SWOT analysis aims at assessing the quality and feasibility of DRIVE operational model after its implementation, i.e. the operations of the study site network as applied in DRIVE.

Methods

The SWOT analysis was conducted through two meetings held among 2 of 14 partners participating in the DRIVE studies in the first season, with clinicians, nurses, data managers and lab technicians from the sites in the network. We collected data on two identified axes (1.organizational and 2.logistical, practical, and laboratory aspects), containing more than one SWOT objective. For each item classified under Strength (S), Weakness (W), Opportunity (O) or Threat (T), experts assigned a 1-5 score, meant to reflect the impact of each listed item on reaching the objectives.

Results

The most common topics, reported by both Italian and Finnish sites collaborators, were the opportunities related to the training and development of the network; funding concerns; opportunities and challenges in training the personnel; management issues due to the project practical organization (e.g. for lack of dedicated personnel, including administrative and for data entry). The scores attributed to the single items appeared skewed to the top, showing how the researchers perceived the majority of the topics as relevant for their day-to-day work.

Conclusions

The SWOT exercise was welcomed as a useful means to compare issues and practices among local study sites, but also as a chance for exchange with both peers and project lead. The results highlight the great value of communication and discussion between study groups, albeit the geographical distance. Such exercise should be included as a routine opportunity for discussion aiming at improving both collaboration and governance model in large projects.

Key messages

One of the main challenges of large public-private consortiums is building a shared governance model; opportunities for collective sharing and collaboration should be promoted in this setting. This SWOT analysis was a useful exercise that should inform the prosecution of the programming of DRIVE operational model, allowing a comparison of issues and practices among local study sites.

The perception of the relationship between environment and health according to data from Italian Behavioural Risk Factor Surveillance System (PASSI)

"OBJECTIVES: to identify groups of people in relation to the perception of environmental risk and to assess the main characteristics using data collected in the environmental module of the surveillance network Italian Behavioral Risk Factor Surveillance System (PASSI).

METHODS

perceptive profiles were identified using a latent class analysis; later they were included as outcome in multinomial logistic regression models to assess the association between environmental risk perception and demographic, health, socio-economic and behavioural variables.

RESULTS

the latent class analysis allowed to split the sample in "worried", "indifferent", and "positive" people. The multinomial logistic regression model showed that the "worried" profile typically includes people of Italian nationality, living in highly urbanized areas, with a high level of education, and with economic difficulties; they pay special attention to their own health and fitness, but they have a negative perception of their own psychophysical state.

CONCLUSIONS

the application of advanced statistical analysis enable to appraise PASSI data in order to characterize the perception of environmental risk, making the planning of interventions related to risk communication possible. ".

Control of targeting ligand display by pH-responsive polymers on gold nanoparticles mediates selective entry into cancer cells

Selective targeting of cells for intracellular delivery of therapeutics represents a major challenge for pharmaceutical intervention in disease. Here we show pH-triggered receptor-mediated endocytosis of nanoparticles via surface ligand exposure. Gold nanoparticles were decorated with two polymers: a 2 kDa PEG with a terminal folate targeting ligand, and a di-block copolymer including a pH-responsive and a hydrophilic block. At the normal serum pH of 7.4, the pH-responsive block (apparent pK_a of 7.1) displayed a hydrophilic extended conformation, shielding the PEG-folate ligands, which inhibited cellular uptake of the nanoparticles. Under pH conditions resembling those of the extracellular matrix around solid tumours (pH 6.5), protonation of the pH-responsive polymer triggered a coil-to-globule polymer chain contraction, exposing folate residues on the PEG chains. In line with this, endocytosis of folate-decorated polymer-coated gold nanoparticles in cancer cells overexpressing folate receptor was significantly increased at pH 6.5, compared with pH 7.4. Thus, the tumour acidic environment and high folate receptor expression were effectively exploited to activate cell binding and endocytosis of these nanoparticles. These data provide proof-of-concept for strategies enabling extracellular pH stimuli to selectively enhance cellular uptake of drug delivery vectors and their associated therapeutic cargo.

Intussusception hospitalizations incidence in the pediatric population in Italy: a nationwide cross-sectional study

Background

Study to investigate the intussusception incidence background in the pediatric population and its temporal trend in Italy.

Methods

A cross-sectional study was conducted on the pediatric population aged 0 to 15 years, in the period 1 January 2002 to 31 December 2012. Intussusception cases were identified using the national hospital discharge database. The annual intussusception incidence, the incidence rate ratios (IRRs) and the related 95 % confidence Intervals (CI) were calculated.

Results

The overall intussusception incidence rate was 21 per 100,000 children aged ≤15 years, and was higher among boys than girls. The highest intussusception incidence rate occurred in infants <1 year of age (39 per 100,000 infants). Among infants, incidence varied with the geographical area, with higher rates in the central Italy (50 per 100,000 infants).

The annual incidence rates in infants were stable since 2004 and up to 2012, ranging from 40.1 and 33.0 per 100,000 infants. Similar stable patterns were observed when conducting the analysis on children over 1 year of age.

Conclusions

This study provided the intussusception incidence background in Italy in different pediatric ages, including infants, over an 11-year period. This information is essential in post-marketing safety surveillance, to continuously monitor the benefit/risk profile of rotavirus vaccinations.

Electronic supplementary material

The online version of this article (doi:10.1186/s13052-016-0298-8) contains supplementary material, which is available to authorized users.

Mortality in Italian veterans deployed in Bosnia-Herzegovina and Kosovo

BACKGROUND AND AIMS

The possible increase of cancer risk in military personnel deployed in Balkans during and after the 1992-1999 wars, mainly related to the depleted uranium, was addressed by several studies on European veterans of those war theatres. This article reports on the results of the mortality study on the Italian cohort of Bosnia and Kosovo veterans (Balkan cohort).

METHODS

Mortality rates for the Balkan cohort (71 144 persons) were compared with those of the Italian general population as well as to those of a comparable and unselected control cohort of not deployed military personnel (114 269 persons). Ascertainment of vital status during the period 1995-2008 of all the persons in the two cohorts has been carried out through deterministic record linkage with the national death records database, from information provided by the respective Armed Force General Staff, and through the civil registry offices of the veterans' residence or birth municipalities.

RESULTS

The Balkan cohort experienced a mortality rates lower than both the general population (SMR = 0.56; 95% CI 0.51-0.62) and the control group (SMR = 0.88; 95% CI 0.79-0.97). Cancer mortality in the deployed cohort group was half of that from the general population mortality rates (SMR = 0.50; 95% CI 0.40-0.62) and slightly lower if compared with the control group cancer mortality rates (SMR = 0.95; 95% CI 0.77-1.18).

CONCLUSION

Balkan veteran cohort did not show any increase in general mortality or in cancer mortality.

Cancer screening uptake: association with individual characteristics, geographic distribution, and time trends in Italy

BACKGROUND

In Italy, organized screening programmes invite the vast majority of the population for cervical and breast cancer, and about one half of the population for colorectal cancer. Programme activity and quality are closely monitored. Nevertheless, there is a vast spontaneous activity, both public and private, for which information on service and coverage is missing. To estimate actual population coverage for the three types of screening the extent of spontaneous screening needs to be known.

METHODS

PASSI is a national telephone-interview surveillance system that continuously collects information about behavioural health risk factors and the diffusion of preventive health interventions. From 2010 to 2013, more than 151,000 18- to 69-year-olds were interviewed. During 2013, 136 out of 147 Italian local health authorities participated in the survey. Information about screening includes: test uptake (Pap smear, HPV, mammography, faecal occult blood test, colonoscopy), date of the last test, provider of the last test (whether paid or for free, proxy of the organized screening programme), reason for not participating in screening, and screening promotion/recommendation received. Individual information on socio-economic characteristics is available.

RESULTS

Seventy-seven percent of the 25-64 year-old women interviewed said they had undergone a Pap smear or HPV test in the three years before the interview, 40%within the screening programme, 37% spontaneously and paying. Seventy percent of the 50-69 year-old women interviewed reported having had a mammography in the two years before the interview, 51% within the screening programme, 19% spontaneously and paying. Thirty-eight percent of the 50-69 year olds interviewed reported having undergone colorectal screening in the two years before the interview, 31% within the screening programme, 7% spontaneously and paying. All three screening programmes showed a decreasing North-South trend in coverage. From 2010 to 2013, coverage increased for all types of screening; the trend was stronger in the South; the increase was mostly due to the tests performed within the organized programmes. People with low education, economic problems, and immigrants from high migration pressure countries had lower coverage levels. In regions with well-implemented organized screening programmes, test coverage was higher and differences for socio-economic factors were smaller than in regions with incomplete programme activation.

[Human papillomavirus vaccine register]

INTRODUCTION

We carried out an active surveillance of common adverse events occurring among women (9 to 26 years old) receiving human papillomavirus vaccine (Gardasil® and Cervarix®) in 9 Italian Regions.

METHODS

Common adverse events occurring in the two weeks following each dose administration were collected using a structured diary.

RESULTS

From August 2008 to September 2011, 12,066 immunised women (9,084 receiving Cervarix® and 2,982 Gardasil®) were included in the surveillance for a total of 29,494 administered doses. 53% of women concluded the vaccination cycle (74% with Gardasil® and 47% with Cervarix®). 61% of women experienced an adverse event after the administration of the first dose. The high proportion of adverse events reported is mainly due to the design of the study, since women were requested to report all events occurring after the vaccination; however the majority of events were mild and transient.

DISCUSSION

As for all vaccines, and in particular for newly marketed ones, the surveillance of adverse events represents an essential step in the evaluation of a vaccination programme.

A cross-sectional study to estimate high-risk human papillomavirus prevalence and type distribution in Italian women aged 18-26 years

Background

Pre-vaccination information on HPV type-specific prevalence in target populations is essential for designing and monitoring immunization strategies for cervical cancer (CC) prevention. Data on HPV prevalence in Italy are available for women over the age of 24 years, target of the population-based CC screening programmes; while data of HPV prevalence in younger ages are very limited. The present study enrolled Italian women aged 18–26 years in order to assess the prevalence and distribution of high-risk (HR) HPV types. Risk-factors correlated with HR-HPV positivity were also described.

Methods

A sample of 2,289 women was randomly selected from the resident population lists of ten Local Health Units (LHUs) located in six Italian Regions scattered across the country; both rural and urban LHUs were involved. Women aged between 18 and 26 years and living in the selected LHUs were included in the study; pregnant women and women who did not speak Italian were excluded. A total of 1,102 women met the inclusion criteria and agreed to participate. Participants were offered pap test and Hybrid-Capture 2 (HC2) test for HR-HPV types and genotyping was performed on positive smears.

Results

Out of 1,094 valid samples, 205 (18.7%) were HR-HPV positive. Women with 2–4 (OR_adj = 4.15, 95%CI: 2.56-6.72) and ≥5 lifetime partners (OR_adj = 10.63, 95%CI: 6.16-18.36) and women who have used any contraceptive in the last six months (OR_adj = 1.67, 95%CI: 1.09-2.54) had a higher risk to be infected; women living with their partner had a lower risk (OR_adj = 0.56, 95%CI: 0.34-0.92) to acquire infection than women living with parents/friends/alone. Among HC2 positive women, HPV16 was the most prevalent type (30.9%), followed by 31 (19.6%), 66 (12.9%), 51 (11.3%), 18 (8.8%), 56 (8.8%). Co-infections of HR-HC2 targeted types were found in 20.4% of positive samples. The HR-HPV prevalence in women with abnormal cytology (52.4%) was significantly higher than in women with normal cytology (14.6%); however 33.0% of HR-HPV infected women had an abnormal cytology.

Conclusion

HR-HPV prevalence in Italian women aged 18–26 years was 19%, higher than what detected for older women, by other studies using the same molecular method and laboratory network; this result supports the choice of electing girls before the sexual debut as the primary target of HPV vaccination. The HPV type distribution found in this study may represent a baseline picture; an accurate post-vaccine surveillance is necessary to early detect a possible genotype replacement. The high prevalence of viral types other than vaccine-HPV types supports the necessity to guarantee the progression of CC screening programmes in vaccinated women.

Is HCMV Vaccine an Unmet Need? The State of Art of Vaccine Development

Congenital HCMV infection is the most frequent congenital infection, with an incidence of 0.2–2.5% among all live births. About 11% of infected newborns show symptoms at birth, including hepato-splenomegaly, thrombocytopenia, neurologic involvement, hearing impairment and visual deficit. Moreover, 5–25% of the asymptomatic congenital HCMV-infected neonates will develop sequelae over months or even years. The relevant social burden, the economic costs of pre-natal screening, post-natal diagnosis, follow-up and possible therapy, although still limited, are the major factors to be considered. Several types of vaccines have been explored in order to develop an effective and safe HCMV vaccine: live attenuated, subunit, vectored, peptide, DNA, and subviral ones, but none are available for use. This review illustrates the different vaccine types studied to date, focusing on the possible vaccination strategy to be implemented once the HCMV vaccine is available, in terms of target population.

[Health indicators in the time of crisis in Italy]

SCOPE

to estimate for the first time in Italy the consequences of the national current economic crisis on health and on social determinants of health, assessing its impact on a set of distal determinants (development and economic wellbeing, labour and environment) and of prossimal ones (material, psychosocial, professional, environmental and behavioural risk factors) on health care performance and on health outcomes normally related to economic trends, as self-perceived health, depression, number of suicides attempts, road traffic incidents and work injuries. The analysis is therefore aimed at identifying the most promising entry points in order to plan and implement either health care and other policies to tackle the negative effects of crisis on health.

DESIGN

using the main international and national references on the measure of wellbeing and on the role of social determinants, this paper draws a conceptual framework of all the connections between recession and health. For each mechanism identified, it examines the value of the main available indicators before and during the crisis in order to measure its impact, adjusting if possible for the trend observed in the previous years. Indicators have been selected according to their availability in the main Italian national informative sources and, when not possible, circumscribing the analysis to the regional or local level.

RESULTS

regarding the short term impact, results have shown an association between the recession and the raise of mental health related problems (measured in terms of number of suicides, depression and substance misuse), especially on the most disadvantaged groups because of their higher job and financial insecurity. A first ex-ante impact assessment on long term effects allows to attribute almost two hundred deaths a year due to the increase of unemployment rate. Regarding the budget cuts on public expenditure of the health care sector, significant reductions have been shown in specialist care and in drug prescriptions, associated with the increase of co-payment and with a stronger effect on the most vulnerable socioeconomic groups. Nevertheless the crisis does not seem to be associated with a reduction of indicators of quality, continuity and outcomes of the health care, at least in the considered clinical pathways (diabetes and maternal and child health). At the same time the crisis seems to be associated with the reduction in the rate of injuries in the workplace (although it has been observed an increase of the serious ones) and car crashes, probably explained by the reduction of industrial production and of household consumptions.

CONCLUSIONS

the conceptual framework seems to be the appropriate tool to set an Italian surveillance system for assessing the short and medium term impact of crisis on health, in particular the health of the most disadvantaged groups, mainly focusing on unemployed which are the most vulnerable target.

Effect of duration of breastfeeding on neuropsychological development at 10 to 12 years of age in a cohort of healthy children

AIM

The aim of this article was to explore the effect of duration of breastfeeding on neurocognitive development.

METHOD

The long-term effect of breastfeeding on neurodevelopment was examined through a battery of neuropsychological tests in 1403 children (693 females, 710 males; mean age 11 y 9mo [SD 6mo], range: 10y 3mo-12y 8mo) who were originally recruited at 6 to 12 weeks of age for a clinical trial on acellular pertussis vaccines. An estimated IQ was obtained from scores of the vocabulary, similarities, block design, and coding tests. Breastfeeding data had been prospectively collected throughout the first year of life. Duration of exclusive breastfeeding was defined as the time during which children received breast milk without receiving any supplemental formula or food. Children were assessed at 10 to 12 years of age. We adjusted the analysis on test scores for multiple potential confounders.

RESULTS

Multivariate analysis showed a significant association between exclusive breastfeeding duration and test scores in the vocabulary (odds ratio [OR] 0.05; confidence interval [CI] 0.00-0.10; p=0.04) and similarities (OR 0.06; CI 0.01-0.11; p=0.03) tests. These associations have a negligible effect size, however. Scores on one writing praxis test subcategory decreased with increasing duration of both exclusive breastfeeding (OR -0.06; CI -0.11 to -0.01; p=0.03) and breastfeeding irrespective of consumption of other foods (OR -0.06; CI -0.11 to -0.01; p=0.03). A negative association was also found between one subcategory of the California verbal learning test and breastfeeding duration longer than 6 months (OR -0.21; CI -0.42 to -0.01; p=0.04).

INTERPRETATION

Breastfed healthy children may perform better on neuropsychological tests in the language domain at 10 to 12 years of age. However, the effect of breast milk on neuropsychological performance in healthy children may have a limited clinical relevance and is confounded by parental education.

Epidemiological surveillance of West Nile neuroinvasive diseases in Italy, 2008 to 2011

Binary file ES_Abstracts_Final_ECDC.txt matches

Epidemiological surveillance of West Nile neuroinvasive diseases in Italy, 2008 to 2011

We describe the geographical and temporal distribution of West Nile neuroinvasive diseases (WNND) cases in Italy from 2008 to 2011. The increasing number of confirmed human cases from eight in 2008 to 18 in 2009 and the occurrence of the virus in a larger geographical area in 2009 (moving from east to west) prompted the Ministry of Health to publish, in spring 2010, a national programme for WNND human surveillance, comprising veterinary and vector surveillance. Subsequently, in 2011, a new national plan on integrated human surveillance of imported and autochthonous vector-borne diseases (chikungunya, dengue and West Nile disease) was issued. Between 2008 and 2011, 43 cases of WNND were reported from five regions in Italy with a case fatality rate of 16%. The incidence of WNND during the entire study period was 0.55 per 100,000 population (range: 0.06–0.23 per 100,000). During 2011, two new regions (Friuli-Venezia Giulia and Sardinia) reported confirmed cases in humans. Integrated human, entomological and animal surveillance for West Nile virus is a public health priority in Italy and will be maintained during 2012.

Epidemiology and transmission dynamics of the 1918-19 pandemic influenza in Florence, Italy

To investigate the 1918/19 influenza pandemic daily number of new hospitalizations in the only hospital in Florence (Central Italy) were analyzed. In order to describe the transmission dynamics of the 1918/1919 pandemic influenza a compartmental epidemic model was used. Model simulations show a high level of agreement with the observed epidemic data. By assuming both latent and infectious period equal to 1.5 days, the estimated basic reproduction number was R(0)(1) = 1.03 (95% CI: 1.00-1.08) during the summer wave and R(0)(2) = 1.38 (95% CI: 1.32-1.48) during the fall wave. Varying the length of the generation time or the estimation method, R(0)(2) ranges from 1.32 to 1.71. The hospitalization rate was found significantly different between summer and fall waves. Notably, the estimated basic reproductive numbers are lower compared to those observed in other countries, while the age distribution of deaths resulted to be consistent with the patterns generally observed during of the 1918-1919 pandemic. Our knowledge on past pandemics, as for the 1918-19 Spanish influenza, would help improving mathematical modeling accuracy and understanding the mechanisms underlying the dynamics of future pandemics.