Table 2. ELISA results and endpoint titers for vaccinee and naturally infected individual serum samples from persons in Colombia*.

Group	Patient ID	Nucleocapsid IgG ELISA†	Neutralizing titer by PRNT50
			WT	Mu	Alpha	Beta	Gamma	Delta	Omicron
AstraZeneca	AZ2	0.15	204	41	154	79	64	77	13
	AZ3	0.07	453	123	381	305	306	470	25
	AZ4	0.11	75	3	91	16	20	24	6
	AZ5	0.12	76	9	104	3	13	29	2
	AZ6	0.13	34	4	45	3	23	15	0
	AZ9	0.08	179	35	189	75	128	84	10
	AZ10	0.07	319	9	153	47	55	26	8
Pfizer-BioNTech	PF1	0.14	119	9	85	1	18	38	3
	PF2	0.04	28	3	43	35	15	17	3
	PF3	0.15	262	62	158	130	101	149	19
	PF4	0.06	754	121	715	204	226	187	43
	PF5	0.05	501	87	320	48	91	259	9
	PF6	0.07	123	10	119	52	15	11	3
	PF7	0.19	214	9	70	5	0	125	3
	PF8	0.05	207	18	167	28	25	66	3
	PF9	0.09	715	10	273	0	46	108	2
	PF10	0.62	1043	132	1036	343	333	799	47
Sinovac	SVN1	2.96	51	54	72	36	66	83	0
	SVN2	1.68	47	9	24	23	21	22	0
	SVN3	0.46	41	6	1	1	18	1	0
	SVN4	2.43	118	61	151	111	89	87	25
	SVN7	0.97	363	162	347	407	188	259	56
	SVN8	0.81	303	5	93	26	30	61	5
	SVN9	0.69	53	0	32	3	15	35	0
	SVN10	1.61	65	4	27	0	10	66	1
	SVN12	0.29	52	8	52	1	20	21	0
	SVN13	0.39	387	24	126	126	35	130	7
	SVN15	2.81	145	175	168	197	147	133	19
	SVN16	0.40	67	2	6	25	10	21	3
	SVN17	0.07	24	1	1	5	0	15	3
	SVN18	0.37	65	0	3	4	0	24	7
	SVN20	1.88	686	464	612	155	131	503	16
Naturally infected	EA210	ND	696	146	825	595	167	177	2
	EA234	ND	142	4	86	83	67	9	0
	EA238	ND	1,080	48	1080	314	541	79	5
	EA245	ND	70	2	61	154	44	0	0
	EA332	ND	93	10	43	94	1	20	0
	EA334	ND	140	6	74	115	7	16	3
	EA340	ND	77	2	24	61	0	14	2
	EA352	ND	1,080	113	1,080	578	870	59	3
	EA354	ND	336	119	423	972	90	628	0
	EA380	ND	918	43	281	630	151	63	17
	EA396	ND	139	24	98	88	14	21	0
	EA413	ND	1,080	18	864	1,080	260	17	11
	EA422	ND	2	20	28	6	123	100	0
	EA439	ND	398	171	283	812	79	62	9
	EA485	ND	357	87	531	206	114	14	0
	EA501	ND	17	13	86	80	1	0	2
	EA520	ND	166	36	154	211	16	141	1

*AstraZeneca (AZD1222), https://www.astrazeneca.com; Pfizer-BioNTech (BNT162b2), https://www.pfizer.com; Sinovac (CoronaVac), http://www.sinovac.com. ND, not determined; PRNT₅₀, 50% plaque reduction neutralization test; WT, wild-type. †Cut-off ≥0.8 was considered positive.