Prolonged Protective Immunity Induced by Mild SARS-CoV-2 Infection of K18-hACE2 Mice.
Vaccines (Basel)
; 10(4)2022 Apr 14.
Article
in English
| MEDLINE | ID: covidwho-1792374
ABSTRACT
Longevity of the immune response following viral exposure is an essential aspect of SARS-CoV-2 infection. Mild SARS-CoV-2 infection of K18-hACE2 mice was implemented for evaluating the mounting and longevity of a specific memory immune response. We show that the infection of K18-hACE2 mice induced robust humoral and cellular immunity (systemic and local), which persisted for at least six months. Virus-specific T cells and neutralizing antibody titers decreased over time, yet their levels were sufficient to provide sterile immunity against lethal rechallenge six months post-primary infection. The study substantiates the role of naturally induced immunity against SARS-CoV-2 infection for preventing recurring morbidity.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Type of study:
Experimental Studies
Language:
English
Year:
2022
Document Type:
Article
Affiliation country:
Vaccines10040613
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