A systematic review of antibody mediated immunity to coronaviruses: kinetics, correlates of protection, and association with severity
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Abstract
Many public health responses and modeled scenarios for COVID-19 outbreaks caused by SARS-CoV-2 assume that infection results in an immune response that protects individuals from future infections or illness for some amount of time. The presence or absence of protective immunity due to infection or vaccination (when available) will affect future transmission and illness severity. Here, we review the scientific literature on antibody immunity to coronaviruses, including SARS-CoV-2 as well as the related SARS-CoV, MERS-CoV and endemic human coronaviruses (HCoVs). We reviewed 2,452 abstracts and identified 491 manuscripts relevant to 5 areas of focus: 1) antibody kinetics, 2) correlates of protection, 3) immunopathogenesis, 4) antigenic diversity and cross-reactivity, and 5) population seroprevalence. While further studies of SARS-CoV-2 are necessary to determine immune responses, evidence from other coronaviruses can provide clues and guide future research.
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SciScore for 10.1101/2020.04.14.20065771: (What is this?)
Please note, not all rigor criteria are appropriate for all manuscripts.
Table 1: Rigor
NIH rigor criteria are not applicable to paper type.Table 2: Resources
Antibodies Sentences Resources Researchers have used assays of both types to characterize antibody activity by antibody class ( i.e. IgG , IgM , IgA) . IgM , IgAsuggested: NoneMany studies reported an immune response , characterized by a robust increment of antibody titers for HCoV-229E , MERS-CoV , SARS-CoV1 , and SARS-CoV-2 after the second or third weeks following the onset of illness8,23–30 . SARS-CoV1suggested: NoneCallow et al.8 found among experimental infections with HCoV-229E that after peaks in IgG … SciScore for 10.1101/2020.04.14.20065771: (What is this?)
Please note, not all rigor criteria are appropriate for all manuscripts.
Table 1: Rigor
NIH rigor criteria are not applicable to paper type.Table 2: Resources
Antibodies Sentences Resources Researchers have used assays of both types to characterize antibody activity by antibody class ( i.e. IgG , IgM , IgA) . IgM , IgAsuggested: NoneMany studies reported an immune response , characterized by a robust increment of antibody titers for HCoV-229E , MERS-CoV , SARS-CoV1 , and SARS-CoV-2 after the second or third weeks following the onset of illness8,23–30 . SARS-CoV1suggested: NoneCallow et al.8 found among experimental infections with HCoV-229E that after peaks in IgG and IgA , antibody levels waned and between 11 weeks and 1 year post inoculation were at similar levels to those found in inoculated but uninfected patients . IgAsuggested: NoneSeveral studies found that cases of varying severity ( e.g. , asymptomatic , mild , and severe ) developed detectable antibodies against HCoV-229E , SARS-CoV-1 , SARS-CoV-2 , and MERSCoV33,41–44 . SARS-CoV-2suggested: (Sino Biological Cat# 40143-R019, AB_2827973)Figure 4 provides a broad sense for trajectories of antibodies ( also see Figures S2 and S3) . S3suggested: NoneHealthy individuals with antibodies to HCoV-229E , HCoV-OC43 , and other endemic HCoVs rarely had detectable antibodies that bound SARS-CoV-1 infected cells or SARS-CoV-1 N protein68,73,74 . HCoV-OC43suggested: NoneBlood donors in Southern China ( n=152 ) and Saudi Arabia ( n=130 ) did not have detectable binding ( IFA ) or neutralizing antibodies to either MERS-CoV or SARS-CoV-176,77 . SARS-CoV-176,77suggested: NoneSome SARS patients also showed a rise in antibodies to HCoV-229E and HCoV-OC43 N protein73 and HCoV-NL6379 . HCoV-OC43 N protein73suggested: NoneAmong SARS-CoV-1 patients ( n=28) , 60 % had detectable IFA titers to MERS-CoV and 25 % had anti-MERS-CoV neutralizing antibodies . anti-MERS-CoV neutralizing antibodies .suggested: NoneA subset of slaughterhouse workers in Saudi Arabia had antibodies to MERS-CoV by IFA as well as to pandemic HCoVs , but none had reactivity to SARS-CoV-1 spike protein . SARS-CoV-1 spike protein .suggested: NoneRegarding regions of the spike protein that may induce antibodies with enhancement effects , both anti-S1a and anti-S1b mAbs showed mild to moderate effects103 . anti-S1bsuggested: NoneAnti-S2 IgG antibodies targeting uninfected lung epithelial cells ( A549 ) were detected in SARS-CoV-1 patients after twenty days post-symptom onset106 , a reactivity not seen in serum from healthy individuals and non-SARS-CoV-1 pneumonia patients A549suggested: NoneIn mice108 and humans109 , there is evidence of anti-N antibodies that cross react with IL-11 , an anti-inflammatory cytokine expressed in many tissues , including lung and bone marrow . anti-Nsuggested: NonePreliminary studies on SARS-CoV-2 point to a possibly contrasting pattern to MERS-CoV: while IgM antibodies appear at the same time in severe and non-severe cases, IgG appears sooner in severe cases33. MERS-CoV: while IgMsuggested: NoneNot all of these studies reported a cutoff for the assay used; in those that did, two thirds of patients with mild symptoms had detectable or positive IgG antibodies at six months and one year, while all patients with severe symptoms had detectable IgG antibodies at the same points in time (Table 1). positive IgGsuggested: NoneAnother prospective study51 reported detection of pre-existing neutralizing antibodies among medical students who had virus isolation (67%, n=8/12) or seroconversion to HCoV-229E (25%, n=3/12). HCoV-229Esuggested: NoneIndividuals experiencing natural infections with HCoV-OC43 or HCoV-229E did not have detectable antibodies in acute or convalescent samples against SARS-CoV-1 (to N protein72; by IFA or neutralization39). SARS-CoV-1suggested: NoneA series of studies by Yip et al. demonstrated that opsonization of anti-spike antibodies allowed SARS-CoV-1 to enter non-ACE2 expressing immune cells that bear Fc--RII (CD32)99,100. anti-spikesuggested: NoneRegarding regions of the spike protein that may induce antibodies with enhancement effects, both anti-S1a and anti-S1b mAbs showed mild to moderate effects103. anti-S1asuggested: NoneAnti-S2 IgG antibodies targeting uninfected lung epithelial cells (A549) were detected in SARS-CoV-1 patients after twenty days post-symptom onset106, a reactivity not seen in serum from healthy individuals and non-SARS-CoV-1 pneumonia patients. Anti-S2 IgGsuggested: NonePresence of anti-S2 antibodies also increased the binding of immune cells (PBMCs) to A549 cells treated with IFN-, replicating the conditions under which a cytokine storm would be observed. anti-S2suggested: NoneIn mice108 and humans109, there is evidence of anti-N antibodies that cross react with IL-11, an anti-inflammatory cytokine expressed in many tissues, including lung and bone marrow. IL-11suggested: NoneExperimental Models: Cell Lines Sentences Resources A separate study demonstrated colocalization of anti-S2 Abs collected from serum of SARS patients ≥50 days post-fever onset with annexin A2 and immunoprecipitated annexin A2 on A549 cell surfaces . A549suggested: NCI-DTP Cat# A549, CVCL_0023The Alphacoronaviruses include two major human coronaviruses, HCoV-229E and HCoV-NL63. HCoV-229Esuggested: NoneSome SARS patients also showed a rise in antibodies to HCoV-229E and HCoV-OC43 N protein73 and HCoV-NL6379. HCoV-OC43 N protein73suggested: NoneSoftware and Algorithms Sentences Resources Additionally , we identified articles that may be relevant from the reference list of other articles identified by our PubMed searches . PubMedsuggested: (PubMed, SCR_004846)Here, we review the scientific literature on antibody immunity to coronaviruses, including SARS-CoV-2 as well as the related SARS-CoV-1, MERS-CoV and human endemic coronaviruses (HCoVs). SARS-CoV-2suggested: (Sino Biological Cat# 40143-R019, AB_2827973)Results from OddPub: Thank you for sharing your data.
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