Can vaccine booster lower the COVID-19 virus infection rate?

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Different countries or regions use different sets of vaccine boosters. We can calculate a relative protection index to indicate how efficient a country of region is with its vaccine boosters to prevent COVID-19 virus infections.

This protection index is listed below by country or region. Calculation formula and examples are provided after the list.

Data was updated at 2023-09-28 22:59:01 Paris time.

You can click the header name to sort the list. Or select 2 regions to compare them in details.

	Seq.	Region	Infections	Infection Rate	Booster Rate	Protection Index ▼
		Global	770,778,396	9.89%	30.67%	-8.36
	1	Niger	9,515	0.04%	0.00%	32.12
	2	United Republic of Tanzania	43,078	0.07%	0.00%	32.09
	3	Burkina Faso	22,056	0.11%	0.00%	32.05
	4	Democratic Republic of the Congo	97,697	0.11%	0.00%	32.05
	5	Mali	33,152	0.16%	0.00%	31.99
	6	Somalia	27,334	0.17%	0.00%	31.99
	7	Liberia	8,090	0.16%	0.04%	31.96
	8	Benin	28,014	0.23%	0.00%	31.93
	9	Yemen	11,945	0.04%	0.22%	31.90
	10	Eritrea	10,189	0.29%	0.00%	31.87
	11	Haiti	34,315	0.30%	0.00%	31.86
	12	Burundi	54,241	0.46%	0.00%	31.70
	13	Congo	25,196	0.46%	0.00%	31.70
	14	Syrian Arab Republic	57,423	0.33%	0.43%	31.40
	15	Madagascar	68,330	0.25%	0.57%	31.35
	16	Papua New Guinea	46,864	0.52%	0.40%	31.23
	17	Comoros	9,109	1.05%	0.00%	31.11
	18	Equatorial Guinea	17,130	1.22%	0.33%	30.61
	19	Djibouti	15,690	1.59%	0.00%	30.57
	20	Algeria	271,852	0.62%	1.31%	30.23
	21	Uganda	171,829	0.38%	1.63%	30.16
	22	Gabon	48,992	2.20%	0.12%	29.84
	23	Guinea	38,563	0.29%	2.30%	29.56
	24	Gambia	12,626	0.52%	2.22%	29.41
	25	Ethiopia	501,032	0.44%	2.48%	29.24
	26	Guinea-Bissau	9,614	0.49%	2.48%	29.19
	27	Cameroon	125,090	0.47%	2.88%	28.81
	28	South Sudan	18,368	0.16%	3.93%	28.06
	29	Venezuela (Bolivarian Republic of)	552,695	1.94%	2.29%	27.92
	30	Kenya	343,955	0.64%	3.72%	27.80
	31	Mozambique	233,417	0.75%	4.03%	27.38
	32	Central African Republic	15,367	0.32%	4.70%	27.14
	33	Myanmar	641,225	1.18%	4.09%	26.89
	34	Senegal	89,014	0.53%	4.87%	26.75
	35	Afghanistan	225,786	0.58%	4.86%	26.72
	36	Togo	39,513	0.48%	5.17%	26.51
	37	Nigeria	266,675	0.13%	5.97%	26.06
	38	Malawi	88,908	0.46%	5.79%	25.91
	39	Angola	105,384	0.32%	6.17%	25.67
	40	Jamaica	156,178	5.27%	1.55%	25.37
	41	Iraq	2,465,545	6.13%	0.68%	25.34
	42	Solomon Islands	21,611	3.15%	4.00%	25.02
	43	Kyrgyzstan	87,949	1.35%	4.23%	24.76
	44	Zambia	349,287	1.90%	6.19%	24.10
	45	Sudan	63,993	0.15%	8.87%	23.14
	46	Vanuatu	12,019	3.91%	5.39%	22.86
	47	Mauritania	63,746	1.37%	8.26%	22.53
	48	Lesotho	34,490	1.61%	8.30%	22.25
	49	Libya	507,269	7.38%	2.72%	22.06
	50	Sierra Leone	7,762	0.10%	10.85%	21.21
	51	Cabo Verde	64,238	11.55%	0.14%	20.52
	52	Côte d’Ivoire	88,338	0.33%	11.90%	19.92
	53	Bosnia and Herzegovina	403,117	12.29%	0.00%	19.88
	54	Saint Vincent and the Grenadines	9,631	8.68%	3.86%	19.62
	55	Ghana	171,653	0.55%	13.08%	18.53
	56	South Africa	4,072,533	6.87%	7.38%	17.91
	57	Ukraine	5,518,385	12.62%	1.70%	17.76
	58	Zimbabwe	265,748	1.79%	13.48%	16.90
	59	Egypt	516,023	0.50%	14.87%	16.78
	60	Russian Federation	23,014,969	15.77%	0.00%	16.44
	61	Armenia	449,465	15.17%	1.52%	15.48
	62	Bahamas	38,084	9.68%	8.57%	13.90
	63	Namibia	171,998	6.77%	11.75%	13.67
	64	Sao Tome and Principe	6,596	3.01%	15.74%	13.42
	65	Saint Kitts and Nevis	6,607	12.42%	6.51%	13.23
	66	Guyana	73,385	9.33%	9.90%	12.94
	67	Antigua and Barbuda	9,106	9.30%	10.05%	12.81
	68	India	44,998,162	3.26%	16.58%	12.32
	69	occupied Palestinian territory	703,228	13.78%	6.61%	11.77
	70	Tunisia	1,153,361	9.76%	10.65%	11.75
	71	Saint Lucia	30,122	16.40%	4.28%	11.51
	72	Greenland	11,971	21.09%	0.00%	11.07
	73	Kosovo	274,020	15.26%	5.88%	11.02
	74	Eswatini	74,882	6.45%	15.29%	10.44
	75	Morocco	1,276,430	3.46%	18.65%	10.06
	76	Suriname	82,588	14.08%	8.33%	9.76
	77	Oman	399,449	7.82%	15.27%	9.06
	78	Jordan	1,746,997	17.12%	6.69%	8.35
	79	Pakistan	1,580,631	0.72%	23.17%	8.27
	80	Grenada	19,693	17.50%	6.59%	8.07
	81	North Macedonia	348,411	16.72%	7.79%	7.66
	82	Chad	7,698	0.05%	24.61%	7.50
	83	Republic of Moldova	621,865	15.42%	9.97%	6.80
	84	Philippines	4,111,331	3.75%	21.73%	6.64
	85	Albania	334,090	11.61%	14.03%	6.52
	86	Trinidad and Tobago	191,496	13.68%	12.49%	5.98
	87	Romania	3,429,120	17.74%	9.15%	5.39
	88	Fiji	69,047	7.70%	19.19%	5.28
	89	Timor-Leste	23,460	1.78%	25.42%	4.96
	90	Dominica	15,760	21.89%	5.55%	4.72
	91	Indonesia	6,813,429	2.49%	25.17%	4.50
	92	Guatemala	1,271,079	7.09%	20.76%	4.40
	93	Lebanon	1,239,904	18.17%	9.67%	4.35
	94	Dominican Republic	667,048	6.15%	23.55%	2.52
	95	Belize	70,782	17.80%	12.63%	1.72
	96	Bulgaria	1,299,930	18.70%	11.98%	1.37
	97	Bolivia (Plurinational State of)	1,207,823	10.35%	21.31%	0.57
	98	El Salvador	201,785	3.11%	29.27%	-0.22
	99	Paraguay	735,816	10.32%	23.28%	-1.44
	100	Botswana	330,256	14.04%	21.59%	-3.46
	101	Saint Helena, Ascension and Tristan da Cunha	2,166	35.68%	0.00%	-3.52
	102	Kiribati	5,085	4.26%	31.48%	-3.54
	103	Turks and Caicos Islands	6,630	17.12%	19.22%	-4.08
	104	The United Kingdom	24,715,857	36.41%	0.00%	-4.11
	105	British Virgin Islands	7,305	24.16%	12.32%	-4.32
	106	Lao People's Democratic Republic	218,853	3.01%	33.69%	-4.53
	107	Serbia	2,547,846	36.78%	0.00%	-4.55
	108	Nepal	1,003,431	3.44%	33.81%	-5.10
	109	Montserrat	1,403	28.07%	11.26%	-7.17
	110	Sri Lanka	672,583	3.14%	38.39%	-9.37
	111	Colombia	6,380,389	12.54%	29.07%	-9.43
	112	Bangladesh	2,045,602	1.24%	40.97%	-10.05
	113	Azerbaijan	832,438	8.21%	34.54%	-10.59
	114	Iran (Islamic Republic of)	7,614,067	9.07%	34.01%	-10.91
	115	Nicaragua	15,984	0.24%	43.66%	-11.74
	116	Kazakhstan	1,502,857	8.00%	35.99%	-11.83
	117	Thailand	4,757,049	6.82%	39.30%	-13.94
	118	Anguilla	3,904	26.02%	20.30%	-14.17
	119	Rwanda	133,194	1.03%	45.39%	-14.26
	120	Montenegro	251,133	39.99%	0.00%	-14.31
	121	Uzbekistan	172,571	0.52%	46.18%	-14.78
	122	Sint Maarten	11,051	25.77%	21.33%	-14.94
	123	French Guiana	98,041	32.82%	15.51%	-16.18
	124	Saudi Arabia	841,469	2.42%	46.13%	-16.39
	125	Micronesia (Federated States of)	26,546	23.08%	26.55%	-17.39
	126	Ecuador	1,069,114	6.06%	43.69%	-17.55
	127	Kuwait	666,284	15.60%	34.13%	-17.57
	128	Samoa	16,778	8.46%	41.46%	-17.74
	129	Mexico	7,672,509	5.95%	44.22%	-17.97
	130	Poland	6,519,948	17.18%	33.01%	-18.02
	131	Honduras	474,582	4.79%	47.10%	-19.72
	132	Tonga	16,825	15.92%	36.47%	-20.22
	133	Georgia	1,855,289	46.51%	6.29%	-20.35
	134	Turkmenistan	0	0.00%	52.59%	-20.43
	135	Turkey	17,004,677	20.16%	33.55%	-21.55
	136	Pitcairn Islands	4	8.00%	46.00%	-21.84
	137	Curaçao	45,883	27.96%	26.29%	-22.05
	138	Tajikistan	17,786	0.19%	54.53%	-22.56
	139	Croatia	1,274,834	31.41%	24.50%	-23.73
	140	Marshall Islands	16,133	27.25%	31.35%	-26.36
	141	American Samoa	8,341	15.11%	43.77%	-26.71
	142	Barbados	109,503	38.10%	21.87%	-27.22
	143	Wallis and Futuna	3,550	31.57%	29.79%	-29.20
	144	Hungary	2,204,488	22.56%	39.60%	-29.99
	145	United Arab Emirates	1,067,030	10.79%	51.96%	-30.59
	146	Mongolia	1,010,975	30.84%	32.30%	-30.95
	147	Sint Eustatius	1,221	38.90%	24.44%	-31.14
	148	China	99,309,232	6.75%	56.67%	-31.26
	149	New Caledonia	80,064	28.04%	36.19%	-32.08
	150	French Polynesia	78,627	27.99%	36.42%	-32.24
	151	Cambodia	138,941	0.83%	63.69%	-32.36
	152	Canada	4,697,504	12.45%	52.40%	-32.64
	153	Slovakia	1,867,323	34.21%	30.90%	-32.94
	154	Panama	1,047,321	24.27%	41.02%	-32.97
	155	Maldives	186,694	34.54%	30.95%	-33.32
	156	Malaysia	5,127,712	15.84%	50.48%	-34.08
	157	United States of America	103,436,829	31.25%	35.24%	-34.33
	158	Northern Mariana Islands (Commonwealth of the)	14,238	24.74%	45.38%	-37.44
	159	Brazil	37,717,062	17.74%	51.93%	-37.46
	160	Belarus	994,037	10.52%	60.32%	-38.68
	161	Viet Nam	11,623,372	11.94%	59.54%	-39.31
	162	Tokelau	80	5.93%	71.70%	-39.92
	163	Tuvalu	2,943	24.96%	48.72%	-40.13
	164	Guadeloupe	203,235	50.79%	22.25%	-40.78
	165	Israel	4,837,411	55.89%	18.32%	-41.93
	166	Mauritius	309,285	24.32%	50.36%	-42.33
	167	Aruba	44,224	41.42%	33.40%	-42.64
	168	Lithuania	1,324,683	47.41%	32.28%	-47.39
	169	Sweden	2,715,809	26.30%	53.65%	-47.74
	170	Guam	51,959	30.79%	49.54%	-47.93
	171	Latvia	975,910	51.16%	28.86%	-47.96
	172	Peru	4,518,007	13.70%	67.16%	-48.67
	173	Bermuda	18,860	30.29%	51.11%	-49.24
	174	Costa Rica	1,238,884	24.32%	58.07%	-50.12
	175	Finland	1,484,646	26.87%	55.89%	-50.52
	176	Estonia	601,851	45.29%	36.66%	-51.08
	177	Norway	1,488,254	27.73%	56.27%	-51.78
	178	Qatar	514,524	17.86%	66.12%	-51.78
	179	Czechia	4,647,121	43.46%	40.82%	-52.08
	180	Cayman Islands	31,472	47.89%	36.62%	-52.35
	181	Spain	13,980,340	29.54%	56.11%	-53.30
	182	Bonaire	9,864	47.16%	38.85%	-53.85
	183	Martinique	230,354	61.38%	24.76%	-53.89
	184	Cuba	1,115,091	9.84%	77.18%	-54.86
	185	Monaco	16,944	43.18%	45.37%	-56.03
	186	Uruguay	1,038,774	29.90%	59.88%	-57.62
	187	Bhutan	62,697	8.13%	82.25%	-58.21
	188	Argentina	10,044,957	22.23%	68.17%	-58.24
	189	Malta	120,044	23.33%	68.53%	-59.45
	190	Japan	33,803,572	26.73%	68.41%	-62.98
	191	Slovenia	1,344,826	64.17%	31.05%	-63.03
	192	Ireland	1,719,863	34.64%	61.56%	-63.90
	193	Seychelles	50,937	51.79%	45.69%	-65.33
	194	Cook Islands	7,158	40.75%	58.30%	-66.73
	195	Bahrain	696,614	40.94%	59.28%	-68.06
	196	Australia	11,591,525	45.46%	56.35%	-68.97
	197	Liechtenstein	21,486	55.45%	47.26%	-70.51
	198	Netherlands	8,617,412	49.50%	54.10%	-71.40
	199	Saba	837	43.30%	60.53%	-71.67
	200	New Zealand	2,380,588	49.37%	56.39%	-72.07
	201	Palau	6,229	34.43%	71.22%	-72.28
	202	Belgium	4,812,396	41.77%	62.87%	-72.37
	203	Puerto Rico	1,252,713	43.79%	63.23%	-74.86
	204	Isle of Man	38,008	44.70%	62.72%	-75.26
	205	Germany	38,437,756	46.22%	62.70%	-76.75
	206	Switzerland	4,411,622	50.97%	58.04%	-76.79
	207	Luxembourg	383,398	61.24%	58.85%	-77.80
	208	Chile	5,288,807	27.67%	82.48%	-77.98
	209	Greece	5,370,810	50.11%	55.07%	-79.69
	210	Faroe Islands	34,658	70.93%	43.56%	-82.33
	211	Andorra	48,015	62.14%	56.54%	-86.52
	212	Italy	26,007,789	43.61%	75.31%	-86.53
	213	Nauru	5,393	49.78%	71.12%	-88.74
	214	France	38,997,490	59.96%	60.95%	-88.84
	215	Denmark	3,416,554	58.68%	62.50%	-88.97
	216	Singapore	2,573,565	43.99%	79.11%	-89.25
	217	Portugal	5,610,180	54.49%	68.51%	-90.64
	218	Niue	887	54.82%	75.71%	-94.05
	219	Iceland	208,957	57.38%	69.91%	-95.20
	220	Republic of Korea	34,571,873	67.43%	65.62%	-95.46
	221	San Marino	24,518	72.24%	56.16%	-95.60
	222	Falkland Islands (Malvinas)	1,923	55.21%	73.01%	-96.07
	223	Austria	6,081,287	68.32%	60.73%	-96.86
	224	Cyprus	660,854	74.42%	54.88%	-97.15
	225	Jersey	66,391	61.59%	68.34%	-97.77
	226	Brunei Darussalam	310,522	70.98%	77.81%	-115.98
	227	Guernsey	35,326	54.80%	107.56%	-130.19
	228	Gibraltar	20,550	61.00%	145.94%	-174.78
	Seq.	Region	Infections	Infection Rate	Booster Rate	Protection Index ▼

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Booster for Infection Protection Index Formula

Relative Protection Index = Infection Rate Difference + Vaccination Rate Difference
Infection Rate Difference = Global Infection Rate - Regional Infection Rate
Vaccination Rate Difference = Global Booster Rate - Regional Booster Rate

Example 1: Booster for Infection Protection Index in India, using 2022-12-18 WHO data.

Global Infection Rate = 8.31%
India Infection Rate = 3.24%
Global Booster Rate = 29.46%
India Booster Rate = 16.16%

Relative Protection Index = (8.31 - 3.24) + (29.46 - 16.16) = 18.37

Example 2: Booster for Infection Protection Index in USA, using 2022-12-18 WHO data.

Global Infection Rate = 8.31%
USA Infection Rate = 29.77%
Global Booster Rate = 29.46%
USA Booster Rate = 34.15%

Relative Protection Index = (8.31 - 29.77) + (29.46 - 34.15) = -26.15

Example 3: Booster for Infection Protection Index in China, using 2022-12-18 WHO data.

Global Infection Rate = 8.31%
China Infection Rate = 0.68%
Global Booster Rate = 29.46%
China Booster Rate = 54.70%

Relative Protection Index = (8.31 - 0.68) + (29.46 - 54.70) = -17.61

 

⇒ Vaccine Efficacy: Booster for Death Protection

⇐ Vaccine Efficacy: Vaccination for Death Protection

⇑ COVID-19 Virus Vaccine Efficacy

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