Viruses Jumping Hosts?

Q4 Medicine

Journal of Communicable Diseases Pub Date : 2023-05-04 DOI:10.24321/0019.5138.202317

P. Rajagopalan

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引用次数: 0

Abstract

It is believed that the KFD virus got its recognition when it was first encountered by people in 1957. Similarly, SARS-CoV-2 was recognised in 2020. However, unlike the KFD virus which needs a tick for transmission, SARS-CoV-2 can be transmitted from one human to another without any vector as it can spread through aerosols and droplets. Hence its transmission was relatively very easy and faster, which gave rise to the COVID-19 pandemic. Conditions that increase the proximity between humans and animals, may favour the development of zoonoses. It has been observed that a remarkable similarity exists between the symptoms of zoonoses caused by the viruses found in Saudi Arabia and Russia and those of KFD in humans. Some viruses found in bats, pangolins, and other animal hosts have been found to be quite similar to SARSCoV-2. The origin of SARS-CoV-2 is still unknown to the world. However, the singular probable reason that might have aided the virus to have ‘jumped hosts’ seems to be the presence of humans and these animals near each other. The veracity of this hypothesis is strengthened by the fact that a market in China where wild animals (inclusive of pangolins and bats) were sold and where many humans could come in contact with them, is assumed to be the source of COVID-19. The cases of bird flu and swine flu also favour this hypothesis.

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病毒跳跃宿主?

据信，KFD病毒是在1957年首次被人们发现时才被发现的。同样，SARS-CoV-2在2020年被发现。但是，与需要蜱虫传播的KFD病毒不同，SARS-CoV-2可以通过气溶胶和飞沫传播，不需要任何载体就可以在人与人之间传播。因此，它的传播相对非常容易和快速，从而导致了COVID-19大流行。增加人与动物之间接近程度的条件可能有利于人畜共患病的发展。已观察到，在沙特阿拉伯和俄罗斯发现的病毒引起的人畜共患疾病的症状与KFD在人类中的症状存在显著的相似性。在蝙蝠、穿山甲和其他动物宿主中发现的一些病毒已被发现与sars -2病毒非常相似。SARS-CoV-2的来源仍是未知的。然而，帮助病毒“跳过宿主”的唯一可能原因似乎是人类和这些动物彼此靠近。中国的一个野生动物(包括穿山甲和蝙蝠)市场被认为是新冠病毒的源头，这一事实进一步加强了这一假设的真实性。禽流感和猪流感的案例也支持这种假设。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Communicable Diseases Medicine-Infectious Diseases

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Journal of Communicable Diseases (E-ISSN: 0019-5138 & P-ISSN: 2394-7047) is published by ADR Publications and is the official publication of Indian Society of Malaria and Other Communicable Diseases. Journal of Communicable Diseases covers scientific researches in the field of communicable diseases. Accept articles with scientific excellence in the form of (1) Original articles in basic and field research (2) Critical reviews, (3) surveys, (4) Case studies, (5) opinions/Correspondence/letters to editor, etc. The first issue of the publication entitled “Bulletin of the National Society of India for Malaria and Other Mosquito-Borne Diseases” the precursor of “Journal of Communicable Disease” (J Commun Dis) was brought out in 1953. The objects and purposes of J Commun Dis are: • to advance knowledge regarding the cause, prevalence, epidemiology, treatment, prevention and control of malaria and other-mosquito-borne diseases and other communicable diseases, • to stimulate scientific and practical interest among individuals and organizations in the prompt and effective application of treatment and control methods, • to integrate scientific and field activities and co-ordinate various scientific investigations, • to disseminate such knowledge both to scientists and to the general public.