Childhood vaccination trends during 2019 to 2022 in Tanzania and the impact of the COVID-19 pandemic

Figures & data

Table 1. Total number and average number of vaccinated children between 2019 and 2022.

Year	2019		2020		2021		2022
Vaccine	Number of vaccinations	*Average number of vaccinations	Number of vaccinations	*Average number of vaccinations	Number of vaccinations	*Average number of vaccinations	Number of vaccinations	*Average number of vaccinations	Total number of vaccinations	Average number of vaccinations
BCG	690,413	1,555	701,027	1,579	713,834	1,608	777,649	1,751	2,882,923	1,623
bOPV0	557,635	1,256	410,719	925	432,481	974	591,309	1,332	1,992,144	1,122
bOPV1	555,362	1,251	443,749	999	471,264	1,061	582,730	1,312	2,053,105	1,156
bOPV2	543,766	1,225	418,056	942	439,606	990	561,706	1,265	1,963,134	1,105
bOPV3	542,406	1,222	406,974	917	425,724	959	565,320	1,273	1,940,424	1,093
MR1	542,218	1,221	546,859	1,232	530,300	1,194	598,068	1,347	2,217,445	1,249
MR2	489,646	1,103	467,987	1,054	461,883	1,040	548,698	1,236	1,968,214	1,108
PCV1	558,140	1,257	565,589	1,274	552,396	1,244	591,843	1,333	2,267,968	1,277
PCV2	544,652	1,227	550,607	1,240	531,001	1,196	576,255	1,298	2,202,515	1,240
PCV3	547,138	1,232	547,317	1,233	528,316	1,190	575,416	1,296	2,198,187	1,238
Penta1	562,094	1,266	568,908	1,281	559,368	1,260	596,394	1,343	2,286,764	1,288
Penta2	547,722	1,234	554,200	1,248	539,599	1,215	578,462	1,303	2,219,983	1,250
Penta3	552,742	1,245	551,373	1,242	536,692	1,209	577,825	1,301	2,218,632	1,249
Rota1	564,799	1,272	564,406	1,271	552,339	1,244	459,145	1,034	2,140,689	1,205
Rota2	540,785	1,218	546,594	1,231	528,125	1,189	435,103	980	2,050,607	1,155
Year Total	8,339,518	1,252	7,844,365	1,178	7,802,928	1,172	8,615,923	1,294	32,602,734	1,224

Key: * Average dose is the average dose administered per region per month.

BCG = Bacille Calmette-Guérin; OPV = Oral Polio Vaccine; PCV = Pneumococcal Conjugate Vaccine; Penta = Pentavalent Vaccine (Diphtheria, Tetanus, Pertussis, Hepatitis B, Haemophilus influenzae type b); MR = Measles and Rubella; Rota = Rotavirus Vaccine.

Figure 1. Total annual vaccinations presented in number of children vaccinated A) in absolute number and B) per 1000 population.

Figure 2. Number of vaccinations per month between Jan 2019 and Dec 2022.

Figure 3. Number of vaccinations per month by type of vaccine between 2019 and 2022. Panel A: BCG and OPV; Panel B: PCV and Penta; and Panel C: MR and Rota.

Key: BCG = Bacille Calmette-Guérin; OPV = Oral Polio Vaccine; PCV = Pneumococcal Conjugate Vaccine; Penta = Pentavalent Vaccine (Diphtheria, Tetanus, Pertussis, Hepatitis B, Haemophilus influenzae type b); MR = Measles and Rubella; Rota = Rotavirus Vaccine.

Figure 4. Number of vaccinations children per 1000 people by year and region between 2019 and 2022.

Figure 5. Cumulative vaccination in each district from 2019 to 2021 as the number of children vaccinated per 1000 people given to children.

Figure 6. Monthly and cumulative differences in vaccination rates from 2019. Panels A-C: Monthly differences for BCG, Penta3, and MR2. Panels D-E: Cumulative differences for BCG (dark blue) and Penta3 (light blue) (D), and MR2 (E).