In 16 regions in the period 11-24 November, the average transmissibility index Rt calculated on symptomatic cases was less than 1. This is what emerges from the monitoring on the Covid of the ISS.
And give
In the period under examination, the institute explains, the mean Rt calculated on symptomatic cases was equal to 0.91 (range 0.79-1.08). There are values of point Rt less than 1 in 16 regions. Of these, 15 have a point rt of less than one «even in its higher confidence interval, indicating a significant decrease in transmissibility». All the Regions have a contagion index “punctual Rt, in its average value, less than one”. In five Regions, on the other hand, is higher than 1: Calabria, Lazio, Molise, Tuscany e Veneto.
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Moreover, the draft reads, for the second consecutive week, the incidence of cases in the last 14 days has decreased. These data “are encouraging and confirm the impact of the measures that accompany a decrease in hospitalizations in the medical area and in intensive care; however, the pressure on hospital services is still very high ».
Three “high risk” regions
Three Regions are “classified at high risk” of transmission of Sars-Cov-2: Calabria, Puglia e Sardinia, the latter as a “precautionary measure as it cannot be reliably evaluated for completeness” of the data. This is what emerges from the Report. The high-risk classification “for 3 or more consecutive weeks – it says – provides for specific measures to be taken at the provincial and regional level”.
«The incidence is still too high to allow for sustainable management, therefore it is necessary to achieve transmissibility levels significantly lower than 1 throughout the national territory, allowing a further decrease in the number of new cases of infection and, consequently, a reduction in pressure on local health services and hospitals», Underlines the ISS.
Improve tracking
“We continue to observe a decrease in the number of cases not attributable to known transmission chains (62,617 compared to 77,541 in the previous week): this data, together with the increase in the percentage of cases detected through contact tracing activities (24.7% versus 17.1%) suggests an improvement in the tracking activity itself.
«Although improving, there is still widespread difficulty in maintaining the high quality of the data reported to the integrated surveillance system both for timeliness (delay in notification of cases) and for completeness. The epidemiological data analyzed relates to the week 23-29 November 2020 which is currently the most recent consolidated data available. As a consequence, this can lead to a possible underestimation of the transmission speed and incidenceThe report continues.
The incidence of cases
According to the ISS, this week there is a significant decrease in the incidence nationwide in the last 14 days: 590.65 cases per 100,000 inhabitants in the period 23/11 / 2020-29 / 11/2020 against 706.27 per 100,000 inhabitants in the period 09 / 11 / 2020-22 / 11/2020, although this “remains at very high levels”.
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