SARS-COV-2/COVID-19: scenario, epidemiology, adaptive mutations, and environmental factors.
Environ Sci Pollut Res Int
; 29(46): 69117-69136, 2022 Oct.
Artículo
en Inglés
| MEDLINE | ID: covidwho-1982294
ABSTRACT
The coronavirus pandemic of 2019 has already exerted an enormous impact. For over a year, the worldwide pandemic has ravaged the whole globe, with approximately 250 million verified human infection cases and a mortality rate surpassing 4 million. While the genetic makeup of the related pathogen (SARS-CoV-2) was identified, many unknown facets remain a mystery, comprising the virus's origin and evolutionary trend. There were many rumors that SARS-CoV-2 was human-borne and its evolution was predicted many years ago, but scientific investigation proved them wrong and concluded that bats might be the origin of SARS-CoV-2 and pangolins act as intermediary species to transmit the virus from bats to humans. Airborne droplets were found to be the leading cause of human-to-human transmission of this virus, but later studies showed that contaminated surfaces and other environmental factors are also involved in its transmission. The evolution of different SARS-CoV-2 variants worsens the condition and has become a challenge to overcome this pandemic. The emergence of COVID-19 is still a mystery, and scientists are unable to explain the exact origin of SARS-CoV-2. This review sheds light on the possible origin of SARS-CoV-2, its transmission, and the key factors that worsen the situation.
Palabras clave
Texto completo:
Disponible
Colección:
Bases de datos internacionales
Base de datos:
MEDLINE
Asunto principal:
Quirópteros
/
COVID-19
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
Tópicos:
Variantes
Límite:
Animales
/
Humanos
Idioma:
Inglés
Revista:
Environ Sci Pollut Res Int
Asunto de la revista:
Salud Ambiental
/
Toxicología
Año:
2022
Tipo del documento:
Artículo
País de afiliación:
S11356-022-22333-0
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