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Table 2 Vaccine effectiveness against SARS-CoV-2 Variants

From: COVID-19 vaccine update: vaccine effectiveness, SARS-CoV-2 variants, boosters, adverse effects, and immune correlates of protection

Vaccine

Alpha

Beta

Gamma

Beta or Gamma

Delta

Omicron

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

AstraZeneca

ChAdOx1 nCoV-19

70.4–87

[73, 76, 77]

82–86

[77, 270]

10.4‡

[107]

     

60–82.8

[76, 77, 93, 128, 235, 271]

90–95.2

[77, 128]

48.9

[93]

 

Pfizer-BNT

BNT162b2

76–95.3

[76, 77, 129, 220, 270, 272,273,274,275]

85–100

[77, 129, 270, 272]

86–100

[11, 77, 129]

92–100

[77, 129]

90

[77]

94

[77]

89

[77]

95

[77]

42–93

[76, 77, 93, 128, 235, 272, 276,277,278]

75–98.7

[77, 128, 272, 278]

55.2–70

[93, 94, 279]

 

Moderna

mRNA-1273

86–100

[75, 77, 272, 275, 280]

91.6–95

[77, 272]

96.4

[280]

 

95.5

[75]

 

88

[77]

 

73.1–94

[75, 77, 93, 127, 272, 278]

81–99

[77, 127, 272, 278, 281]

36.7–94.5

[279]

84.5

[281]

Johnson & Johnson

Ad26.COV2.S

70.2*

[29]

 

51.9*–64*

[29, 282]

81.7*

[29, 282]

36.5*–68.1*

[29, 282]

87.6*

[282]

  

69.9†

[127]

93.7†

[127]

  

Novavax

NVX-CoV2373

85.6–86.3

[48, 283]

 

51–60

[283, 284]

     

82

[285]

   

Sinovac Biotech CoronaVac

    

37.1‡

[286]

       

Any mRNA (BNT162b2 or mRNA-1273)

86–90

[74, 287]

94

[287]

    

77–88

[74, 287]

100

[287]

66–92

[280, 288, 289]

94

[288, 289]

36–69

[288, 289]

55–71

[288, 289]

CoronaVac

or BBIBP-CorV

        

59

[290]

   

BBV152

        

65.2*

[47]

   

Vaccine

 

Delta

Omicron

Primary

Booster

Infection/symptomatic

Severe disease

Infection/symptomatic

Severe disease

ChAdOx1 nCoV-19

BNT162b2

94 [93]

 

71 [93]

 

BNT162b2

BNT162b2

88–93 [93, 177]

97 [177]

76 [93]

89 [176]

Any mRNA

Any mRNA

93 [139]

94 [178]

67 [139]

90 [178]

mRNA-1273

mRNA-1273

94 [281]

 > 99 [281]

72 [281]

 > 99 [281]

  1. *Efficacy in trial
  2. †Age 18–49 yr
  3. ‡Negative 95% CI lower bound value
  4. Summary of Effectiveness of Vaccine Booster Against SARS-CoV-2 Variants