Although the hospital pressure does not resemble the previous waves of Covid-19, the impact of this “fifth wave” in terms of population impact will be as intense as in the second (autumn 2020), third (winter) and fourth (spring). This is what it indicates the trend detected since the beginning of July by the Canal Isabel II Vigilance System, which tracks the remains of the SARS-CoV-2 coronavirus in the wastewater of the Community of Madrid.

The presence of coronavirus in the wastewater of the Canal de Isabel II has generally increased in the region continuously in the last three weeks, coinciding with the beginning of July, after a continuous decline since the end of April. Although the first rebound occurred in Madrid capital, the incidence in the rest of the Community has followed the same growth rate since the second week of the month.

The sequence of the graphs warns that the level of Covid in Madrid’s sewage was significant between the months of September and October, in the so-called second wave; to then go down and climb again, reaching the record at the end of January (third wave).

In February and March it was reduced but remaining moderate levels until pick up something in early April (the so-called fourth wave), to experience a substantial and prolonged decline since then until the first week of July, when the general incidence has increased, especially among the younger population.

The system also publishes four charts. The first three show the general evolution for the entire Community of Madrid, Madrid capital and the rest of the region, and the fourth shows the evolution of the general state of the color sampling points. Red for the number of wells with increased SARS-CoV-2 presence, orange for wells with slight decrease, yellow for wells with pronounced decrease, and green for few without presence of this virus.

For wells the trend is also negative. The graphs indicate that red wells have soared to overtake yellow wells in the second week of July as oranges and greens plummet.

Uploads by municipalities

The Vigía system also incorporates a map by municipalities of the region and districts of the capital differentiated with a color code quantifying the importance of the presence of SARS-CoV-2, its trend being the absolute value compared with the historical data of this municipality / district.

The data available in the middle of the month indicate that there are several localities where the presence of Covid in their fecal waters has increased. The higher rises They are located in Pozuelo del Rey, Venturada, Robregordo, Villamantilla, Somosierra, El Atazar, Rivas-Vaciamadrid, Coslada, Boadilla del Monte, Villanueva de Perales, Daganzo de Arriba, Navarredonda and San Mamés, Braojos, Brea de Tajo, Robledillo de la Jara, Ajalvir, Brunete, Bustarviejo, San Fernando de Henares, El Vellón, Fuenlabrada, Valdemanco, Serranillos del Valle, Arganda del Rey and Villavieja del Lozoya.

Other municipalities register more moderate ascents such as Valdemoro, Rozas del Puerto Real, Cenicientos, San Martín de Valdeiglesias, Robledo de Chavela, Navagalamella, San Lorenzo, El Escorial, Colmenar de Arroyo, Navalcarnero, Brunete, Colmenarejo, Robregordo, Somosierra, Camarma de Esteruelas , Daganzo, Las Rozas, San Sebastián de los Reyes, Valdilecha, Orosco, Carabaña, Fuentidueña, Perales de Tajuña, Parla, Arroyomolinos, Getafe and Moraleja de Enmedio.

In the capital, finally, the incidence of Covid in sewage grows in San Blas and Villa de Vallecas, with upturns in Fuencarral-El Pardo, Barajas, Hortaleza, Moratalaz, Villa de Vallecas, Chamberí, Retiro, Salamanca, Chamberí and Puente de Vallecas, Tetuán, Ciudad Lineal and Moratalaz.

The Canal clarifies that the public data offered on its page are “the result of its genomic, statistical and mathematical analyzes.. Any interpretation of said data corresponds exclusively to the health authorities of the Community of Madrid, which have more tools to analyze the situation “.


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