Why are most new infections asymptomatic?

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Just a month after the end of the state of emergency and the arrival of the “new normal state”, Spain is facing a complex situation: the outbreak of corvide 19 virus is spreading all over the country, and the number of new infections is increasing every day. In the past 24 hours, 685 people have contracted coronary artery virus, the highest number since May. However, the health sector has consistently stressed the fact that most of those infected – 50 to 60 per cent – are asymptomatic.

Why is this? Why don’t they develop symptoms? To explain this, the Ministry of health has for several days been referring to the active investigation conducted between the contact person for the newly discovered case and mar í a Jos é Sierra, regional director of the health emergency and alert coordination centre. He explained that again at a press conference this Monday on epidemiological data on the covid-19 epidemic.

“These cases were discovered in the process of finding contacts and are now under very thorough investigation,” Sierra stressed in court in place of Fernando SIM ó n, director of ACC, who is currently resting for a few days. Therefore, this is a positive orientation of the Ministry of health for infected people, which is much larger than before. At that time, most of the HIV positive patients were patients who went to the health care center during the development of symptoms.

In this regard, the regional head of the Catholic children’s support in Ontario detailed that “a lot of screening among active contacts” is in progress and a large number of asymptomatic people have been found.

Differences in data

Through this clarification, preventive and epidemiologists have tried to explain some of the data provided daily in health reports, which illustrate the development of the Spanish epidemic and the differences between them: the cumulative incidence calculated by the date of diagnosis and the date of onset of symptoms. There are significant differences between the two data, which have increased in recent days.

“These are very important differences that you will always see in our reports because we have more and more asymptomatic cases,” he stressed. We see an increase in the number of cases on each diagnosis date, which is reflected in the cumulative cases on the 14 day diagnosis day. “.

“As a result, the number of cases diagnosed has tripled in the past three weeks,” he added. We have made an average diagnosis of 370 cases in the week of June 29 and 650 cases in the week of July 6 to an average of 1200 cases last week

1. Add PCR test

In view of the current situation and resurgence in the country, PCR detection capacity in the autonomous regions increased by 6 per cent between 10 and 16 July. As a result, the Ministry of Health reported in a communique that so far 86.49 out of every 1000 residents have received the test.

With this increase, more than 4 million PCR tests have been carried out in Spain since the outbreak of covid-19. Specifically, the autonomous regions have informed the Ministry of health that as of July 16, a total of 4073664 PCR diagnostic tests have been carried out.