Page 71 - GHES-2-4

Global Health Economics and
Sustainability
Assessing Vietnam’s pandemic lockdown

3.1.3. North Central and Central Coastline CT-TTg appeared ineffective, with the trend remaining

Among the six provinces of the North Central region, Nghe positive after the intervention. Therefore, the local
An and Quang Binh experienced the most severe situation, authorities extended Directive No.16/CT-TTg to the entire
with daily new infections peaking at over 100 cases. city on July 31, 2021, when the infection rate increased
However, the targeted application of Directive No.16/ to 55 cases/day. This broader intervention significantly
CT-TTg in specific areas proved successful. In Nghe An, reduced the post-intervention slope to −4.02 (p = 0.062).
the intervention applied Directive No.16/CT-TTg to 14 out In the remaining provinces, the pandemic situation was
of 21 districts/cities, resulting in a negative slope of −1.49 more complicated. Khanh Hoa and Phu Yen managed to
(p = 0.223). Quang Binh required the implementation control the outbreak only after applying Directive No.16/
of Directive No.15/CT-TTg across the entire province CT-TTg across the entire province on August 6, 2021, and
when daily cases surged beyond 120. This intervention July 23, 2021, respectively.
reduced the trend with a slope change of −1.32 (p = 0.054).
Thanh Hoa, Thua Thien Hue, Ha Tinh, and Quang Tri 3.1.4. Central Highlands
implemented restrictions on internal movement, followed All provinces in the Central Highlands area effectively
by Directive No.16/CT-TTg, effectively controlling the controlled the pandemic during the study period. Despite
infection rate to under 100 cases/day. their proximity to the pandemic epicenter in the Southern

The pandemic mainly escalated in Da Nang, Quang region, the peak infection rate in these provinces remained
Nam, and Quang Ngai at the end of June. Quang Nam below 200 cases/day. The combination of internal
and Quang Ngai first imposed internal movement movement restrictions and the implementation of Directive
restrictions before implementing Directive No.16/CT-TTg No.16/CT-TTg were sufficient to control the outbreak in
in specific areas, resulting in predominantly negative this region. For example, in Dak Lak province, following
post-intervention slopes. However, in Da Nang, as shown the implementation of a policy on August 06, 2021, that
in Figure 4, the targeted application of Directive No.16/ refused returnees from pandemic-affected areas, the local

Figure 3. Interrupted time series model result for Ha Noi

Figure 4. Interrupted time series model result for Da Nang City

Volume 2 Issue 4 (2024) 7 https://doi.org/10.36922/ghes.3423