Seven popular but mistaken ideas about the pandemic
1- A positive PCR test corresponds to an active infection by the virus In fact a positive PCR test can only confirm the presence of part of the virus, it
New variant: cause for concern or exaggerated alarmism?
British Prime Minister Boris Johnson reported that a new variant of SARS-CoV-2 has been detected in England, possibly up to 70% more transmissible than the previous one. This news was
Serological study: 1.9% of Portuguese have antibodies against Covid-19
1.9% of the Portuguese population developed antibodies against Covid-19 by September of this year, according to the largest serological survey conducted so far in our country. The study – which
WHO declares high risk of false positives in RT-PCR tests
In a notification for the correct use of RT-PCR tests for the detection of the SARS-CoV-2 virus, the WHO warns of a high risk of false positives. “Description of the
Studies: Schools are not the main focus of Covid-19 infection. Children transmit less
The closing of schools is the wrong response to fight the coronavirus pandemic, and did not help in the fight against Covid-19, it simply removed a system that provides children
Rain and humidity make masks ineffective
The General Directorate of Health (DGS) has recommended the use of a mask in the outdoors whenever physical distance cannot be guaranteed, in their health plan for the fall and
What is a Covid 19 death?
We constantly hear in the news phrases like "Covid has already killed X number of people in a given country" or "X number of people have died due to the
Study: Why is the Covid mortality rate so different between countries?
The Covid mortality rate is more associated with social factors such as life expectancy, the public health context, the economy and financial support, and the environment (temperature and UV), than
The two paradigms for tackling the pandemic
Despite the various perspectives on the response to this pandemic, there are two prevailing currents within the scientific community. Especially now that some evidence is more consolidated, these two fields
Fight against Covid divides scientists: what the two ideological groups advocate
Although there are multiple views on the pandemic, two substantially different models share the preference of most researchers, policy makers and the general population. In this table, we summarize these
Study in Wuhan indicates that asymptomatics may not transmit the virus
A study in Wuhan, based on tests on almost 10 million residents, showed that “there was no evidence of transmission of asymptomatic positive people to close contacts and no asymptomatic
The profile of Covid deaths- Italian reality
In Italy, only 3.3% of the Covid-19 deaths investigated do not show comorbidities (other previous serious pathologies). 65.3% of the deaths had 3 or more comorbidities, 18.6% had two, and