The COVID-19 pandemic is the third recorded outbreak of a coronavirus, with the 2002 sudden acute respiratory syndrome (SARS, SARS-CoV-1 or SARS-CoV) and the 2012 Middle East respiratory syndrome (MERS or MERS-CoV) epidemics preceding it. While these outbreaks are the easiest to directly compare virologically, the SARS-CoV-1 and MERS-CoV epidemics did not reach the global scale of COVID-19, for several reasons. Both SARS-CoV-1 and MERS-CoV have a higher case fatality rate (CFR) than COVID-19, indicating more deaths per number of infections. The SARS-CoV-1 virus (or SARS-CoV) caused 774 deaths from 8,096 reported cases between 2002 and 2004, with a CFR of 11 % [3], while the CFR for the MERS virus (or MERS-CoV) is greater than 35 %, with approximately 2,400 reported cases and 850 deaths [4]. The COVID-19 CFR is challenging to evaluate, due to widespread variability in public health response and capacity, availability of treatment, national demography, viral variants, and prevalence of comorbidities [5]. The mortality rate of COVID-19 is currently estimated to be between 2 % and 4 %; however, some countries have a CFR of less than 1 %, while others (particularly poorer countries, and those whose healthcare systems have been overrun) have a CFR as high as 25 % [6]. While this makes SARS-CoV-2 a less lethal pathogen than the preceding coronaviruses that have seen outbreaks, it is far more widely spread. The 2002 SARS-CoV-1 epidemic is the most direct correlate for the current pandemic in terms of transmissibility; however, the rapid and highly coordinated health response limited the outbreak to a small number of cases in a small number of countries. The significantly more dangerous MERS-CoV has low levels of transmission, particularly from human to human in community transmission [7], which has significantly limited its impact globally. COVID-19’s high transmissibility has made it of significant health concern. This is particularly relevant in at-risk patient demographics, where its CFR can increase to as much as 35 % in older people with comorbidities [8]. While SARS-CoV-1 and MERS are the microbes most closely associated with the current pandemic, more clinically relevant comparisons are likely found in the historical influenza pandemics (Fig. 1 ).
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Corona virus disease 2019 is an infectious disease brought about by serious intense respiratory disorder coronavirus. The primary case was recognized in Wuhan, China, in December 2019. Manifestations of Coronavirus disease 2019 are variable, yet regularly incorporate fever, hack, exhaustion, breathing challenges, and loss of smell and taste. Preventive measures incorporate physical or social removing, isolating, ventilation of indoor spaces, covering hacks and sniffles, hand washing, and getting unwashed hands far from the face.
The utilization of facial coverings or covers has been prescribed in open settings to limit the danger of transmissions. A few antibodies have been created and different nations have started mass inoculation crusades. Coronaviruses are a group of infections that can cause ailments like the normal cool, extreme intense respiratory condition (SARS) and Center East respiratory disorder (MERS). In 2019, a new coronavirus was distinguished as the reason for a disease flare-up that began in China. The infection is presently known as the serious intense respiratory disorder coronavirus (SARS-CoV-2).
Which of the following is caused by novel corona virus SARAS Cov2?
Answers & Comments
Answer:
1. Coronaviruses
The COVID-19 pandemic is the third recorded outbreak of a coronavirus, with the 2002 sudden acute respiratory syndrome (SARS, SARS-CoV-1 or SARS-CoV) and the 2012 Middle East respiratory syndrome (MERS or MERS-CoV) epidemics preceding it. While these outbreaks are the easiest to directly compare virologically, the SARS-CoV-1 and MERS-CoV epidemics did not reach the global scale of COVID-19, for several reasons. Both SARS-CoV-1 and MERS-CoV have a higher case fatality rate (CFR) than COVID-19, indicating more deaths per number of infections. The SARS-CoV-1 virus (or SARS-CoV) caused 774 deaths from 8,096 reported cases between 2002 and 2004, with a CFR of 11 % [3], while the CFR for the MERS virus (or MERS-CoV) is greater than 35 %, with approximately 2,400 reported cases and 850 deaths [4]. The COVID-19 CFR is challenging to evaluate, due to widespread variability in public health response and capacity, availability of treatment, national demography, viral variants, and prevalence of comorbidities [5]. The mortality rate of COVID-19 is currently estimated to be between 2 % and 4 %; however, some countries have a CFR of less than 1 %, while others (particularly poorer countries, and those whose healthcare systems have been overrun) have a CFR as high as 25 % [6]. While this makes SARS-CoV-2 a less lethal pathogen than the preceding coronaviruses that have seen outbreaks, it is far more widely spread. The 2002 SARS-CoV-1 epidemic is the most direct correlate for the current pandemic in terms of transmissibility; however, the rapid and highly coordinated health response limited the outbreak to a small number of cases in a small number of countries. The significantly more dangerous MERS-CoV has low levels of transmission, particularly from human to human in community transmission [7], which has significantly limited its impact globally. COVID-19’s high transmissibility has made it of significant health concern. This is particularly relevant in at-risk patient demographics, where its CFR can increase to as much as 35 % in older people with comorbidities [8]. While SARS-CoV-1 and MERS are the microbes most closely associated with the current pandemic, more clinically relevant comparisons are likely found in the historical influenza pandemics (Fig. 1 ).
Answer:
CORONA VIRUS DISEASE
Explanation:
Corona virus disease 2019 is an infectious disease brought about by serious intense respiratory disorder coronavirus. The primary case was recognized in Wuhan, China, in December 2019. Manifestations of Coronavirus disease 2019 are variable, yet regularly incorporate fever, hack, exhaustion, breathing challenges, and loss of smell and taste. Preventive measures incorporate physical or social removing, isolating, ventilation of indoor spaces, covering hacks and sniffles, hand washing, and getting unwashed hands far from the face.
The utilization of facial coverings or covers has been prescribed in open settings to limit the danger of transmissions. A few antibodies have been created and different nations have started mass inoculation crusades. Coronaviruses are a group of infections that can cause ailments like the normal cool, extreme intense respiratory condition (SARS) and Center East respiratory disorder (MERS). In 2019, a new coronavirus was distinguished as the reason for a disease flare-up that began in China. The infection is presently known as the serious intense respiratory disorder coronavirus (SARS-CoV-2).
Which of the following is caused by novel corona virus SARAS Cov2?
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