The impact of COVID-19 continuous containment and mitigation strategy on the epidemic of vector-borne diseases in China

Table 1 Changes in the average annual incidence of five vector-borne diseases in 2020 compared to the previous 5 years 2015–2019) in China

Diseases	Average yearly incidence		Average yearly cases (n)		Percentage change^a (95% CI)	P-value^b
Diseases	2020	2015–2019	2020	2015–2019	Percentage change^a (95% CI)	P-value^b
Overall	0.2638	0.9753	3684	13,456	− 72.95 (− 74.85 to − 71.05)	< 0.001
EEB	0.0223	0.0844	312	1165	− 73.53 (− 79.99 to − 67.09)	< 0.001
Typhus^c	0.0859	0.0850	1199	1173	1.01 (− 7.10 to 9.08)	0.81
Dengue	0.0574	0.5704	802	7870	− 89.93 (− 92.25 to − 87.62)	< 0.001
Malaria^c	0.0816	0.2147	1140	2962	− 61.98 (− 66.20 to − 57.75)	< 0.001
Leishmaniasis^c	0.0165	0.0208	231	287	− 20.48 (− 35.94 to − 5.02)	0.01

CI, Confidence interval; EEB epidemic encephalitis B
^aChanges = (x1 − ×2)/x2 × 100%, where x1 is the average yearly incidence in 2020, and x2 is the average yearly incidence in the previous 5 years (2015–2019)
^bThe P-value was computed using two proportional tests
^cThe monthly incidence has a long-term significant downward trend

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