REZA, Marco Villanueva et al.
 Current Vaccine and Efficacy of COVID-19 in Latin America: Challenges and need for updated public health policy.
<strong>Medical Research Archives</strong>, [S.l.], v. 12, n. 6, june 2024.
ISSN 2375-1924.
Available at: &lt;<a href="https://esmed.org/MRA/mra/article/view/5393" target="_new">https://esmed.org/MRA/mra/article/view/5393</a>&gt;. Date accessed: 22 dec. 2024.
doi: <a href="https://doi.org/10.18103/mra.v12i6.5393">https://doi.org/10.18103/mra.v12i6.5393</a>.