What evidence is there to suggest that coronaviruses may be linked with SARS?
CDC scientists were able to isolate a virus from the tissues of two patients who hadSARS and then used several laboratory methods to characterize the agent.Examination by electron microscopy revealed that the virus had the distinctive shapeand appearance of coronaviruses. Tests of serum specimens from patients with SARSshowed that the patients appeared to have recently been infected with this coronavirus.Other tests demonstrated that coronavirus was present in a variety of clinicalspecimens from patients, including nose and throat swabs. In addition, genetic analysissuggests that this new virus belongs to the family of coronaviruses but differs frompreviously identified coronaviruses. These laboratory results do not provide conclusiveevidence that the new coronavirus is the cause of SARS. Additional specimens arebeing tested to learn more about this coronavirus and its link with SARS.
CDC scientists were able to isolate a virus from the tissues of two patients who had SARS and then used several laboratory methods to characterize the agent. Examination by electron microscopy revealed that the virus had the distinctive shape and appearance of coronaviruses. Tests of serum specimens from patients with SARS showed that the patients appeared to have recently been infected with this coronavirus. Other tests demonstrated that coronavirus was present in a variety of clinical specimens from patients, including nose and throat swabs. In addition, genetic analysis suggests that this new virus belongs to the Family of coronaviruses, but differs from previously identified coronaviruses. These laboratory results do not provide conclusive evidence that the new coronavirus is the cause of SARS. Additional specimens are being tested to learn more about this coronavirus and its link with SARS.
CDC scientists isolated a virus from the tissues of two SARS patients and then used several laboratory methods to characterize it. Examination by electron microscopy revealed that the virus has the distinctive shape and appearance of coronaviruses, and genetic analysis suggests that this new virus does belong to the family of coronaviruses but differs from previously identified family members. Tests of serum specimens from people with SARS showed that they appeared to have been recently infected with this virus. Other tests demonstrated that this previously unrecognized coronavirus was present in a variety of clinical specimens (including specimens obtained by nose and throat swab) from other SARS patients with direct or indirect links to the outbreak. These results and other findings reported from laboratories participating in the World Health Organization (WHO) network provide growing evidence in support of the hypothesis that this new coronavirus is the cause of SARS. Additional stu
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