diff --git a/docs/tex/tex_descriptions/projects/sm_covid/serodata.tex b/docs/tex/tex_descriptions/projects/sm_covid/serodata.tex
index 813e74555..c03fa40b0 100644
--- a/docs/tex/tex_descriptions/projects/sm_covid/serodata.tex
+++ b/docs/tex/tex_descriptions/projects/sm_covid/serodata.tex
@@ -1,5 +1,5 @@
 
-In addition, for countries where a nationally representative seroprevalence survey had been conducted \textcolor{red}{(n=44)}, we include
+In addition, for countries where a nationally representative seroprevalence survey had been conducted (n=44), we include
 seroprevalence data in the calibration likelihood. We used the online platform SeroTracker to extract country-specific seroprevalence estimates. 
 The estimates had to verify the following conditions to be included in the analysis as calibration targets:
 \begin{itemize}
@@ -36,97 +36,96 @@
         \label{tab:sero_national}
         \begin{tabular}{p{2cm} | p{1.6cm} | p{1.6cm} | p{0.8cm} | p{0.8cm} | p{1cm} | p{1.3cm} | p{1.2cm} | p{1.2cm}}
            \hline            
-           
            \textbf{country} & \textbf{sampling start date} & \textbf{sampling end date} & \textbf{age min} & \textbf{age max} & \textbf{denom. value} & \textbf{serum pos prevalence} & \textbf{estimate grade} & \textbf{overall risk of bias} \\ 
-\hline 
-\href{https://dx.doi.org/10.5694/mja2.51542}{\textcolor{blue}{Australia}} & 2020-11-03 & 2021-03-12 &  & 19 & 1685 & 0.0023 & National & High \\ 
-\hline 
-\href{https://dx.doi.org/10.1007/s15010-021-01639-0}{\textcolor{blue}{Austria}} & 2020-06-05 & 2020-12-04 & 18 & 72 & 20228 & 0.025 & National & High \\ 
-\hline 
-\href{https://dx.doi.org/10.2807/1560-7917.ES.2022.27.9.2100419}{\textcolor{blue}{Belgium}} & 2020-10-12 & 2020-10-17 &  & 101 & 2966 & 0.0418 & National & Low \\ 
-\hline 
-\href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8225319/}{\textcolor{blue}{Brazil}} & 2020-05-14 & 2020-06-23 &  &  & 89362 & 0.023 & National & Moderate \\ 
-\hline 
-\href{https://serotracker.com/en/Explore}{\textcolor{blue}{Canada}} & 2021-04-13 & 2021-04-30 & 17 &  & 16931 & 0.2692 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1186/s12879-022-07045-7}{\textcolor{blue}{Chile}} & 2020-09-25 & 2020-11-25 & 7 & 94 & 2493 & 0.104 & National & Low \\ 
-\hline 
-\href{https://dx.doi.org/10.1016/j.lana.2022.100195}{\textcolor{blue}{Colombia}} & 2020-09-21 & 2020-12-11 & 5 & 80 & 17863 & 0.3253 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.3390/pathogens10060774}{\textcolor{blue}{Croatia}} & 2020-12-15 & 2021-02-15 &  &  & 1436 & 0.251 & National & High \\ 
-\hline 
-\href{https://doi.org/10.1038/s43856-022-00080-0}{\textcolor{blue}{Czechia}} & 2021-02-01 & 2021-03-31 & 18 &  & 19548 & 0.51 & National & High \\ 
-\hline 
-\href{https://dx.doi.org/10.1007/s10654-021-00796-8}{\textcolor{blue}{Denmark}} & 2020-12-01 & 2020-12-31 & 12 &  & 4044 & 0.043 & National & Low \\ 
-\hline 
-\href{https://dx.doi.org/10.3389/fmed.2022.933260}{\textcolor{blue}{Ecuador}} & 2020-10-12 & 2020-10-19 &  &  & 1250 & 0.1168 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1186/s41182-022-00448-x}{\textcolor{blue}{Egypt}} & 2021-01-15 & 2021-06-15 &  &  & 2360 & 0.463 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1038/s41467-021-23233-6}{\textcolor{blue}{France}} & 2020-05-11 & 2020-05-17 &  &  & 3592 & 0.0493 & National & Low \\ 
-\hline 
-\href{https://www.ifo.de/en/publikationen/2020/monograph-authorship/die-deutschen-und-corona}{\textcolor{blue}{Germany}} & 2020-10-26 & 2020-11-18 & 18 &  & 9929 & 0.011 & National & Moderate \\ 
-\hline 
-\href{https://revistas.ucr.ac.cr/index.php/psm/article/view/43261/46175}{\textcolor{blue}{Honduras}} & 2020-06-16 & 2020-06-23 & 5 &  & 792 & 0.062 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1007/s11357-020-00226-9}{\textcolor{blue}{Hungary}} & 2020-05-01 & 2020-05-16 & 14 &  & 10474 & 0.0068 & National & Low \\ 
-\hline 
-\href{http://dx.doi.org/10.1016/j.ijid.2021.05.040}{\textcolor{blue}{India}} & 2020-12-18 & 2021-01-06 & 10 &  & 28598 & 0.241 & National & Low \\ 
-\hline 
-\href{https://dx.doi.org/10.1186/s12889-022-13464-7}{\textcolor{blue}{Iran}} & 2021-01-15 & 2021-03-15 & 10 & 90 & 7411 & 0.342 & National & Low \\ 
-\hline 
-\href{https://dx.doi.org/10.1007/s10654-021-00749-1}{\textcolor{blue}{Israel}} & 2020-06-28 & 2020-09-14 &  &  & 54357 & 0.046 & National & Moderate \\ 
-\hline 
-\href{https://www.istat.it/it/files//2020/08/ReportPrimiRisultatiIndagineSiero.pdf}{\textcolor{blue}{Italy}} & 2020-05-25 & 2020-07-15 &  &  & 64660 & 0.025 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.3201/eid2702.204088}{\textcolor{blue}{Japan}} & 2020-06-01 & 2020-06-07 & 20 &  & 7950 & 0.001 & National & Moderate \\ 
-\hline 
-\href{http://dx.doi.org/10.1016/j.onehlt.2021.100292}{\textcolor{blue}{Jordan}} & 2020-12-27 & 2021-01-06 &  &  & 5044 & 0.342 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.3390/ijerph19042263}{\textcolor{blue}{Kazakhstan}} & 2020-07-16 & 2021-07-07 &  &  & 85346 & 0.63 & National & High \\ 
-\hline 
-\href{https://dx.doi.org/10.1001/jama.2021.15265}{\textcolor{blue}{Kenya}} & 2021-01-03 & 2021-03-15 & 16 & 64 & 3018 & 0.485 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1186/s12879-022-07031-z}{\textcolor{blue}{Lebanon}} & 2020-12-07 & 2021-01-15 &  &  & 2058 & 0.185 & National & Low \\ 
-\hline 
-\href{https://www.journals.vu.lt/AML/article/view/22344}{\textcolor{blue}{Lithuania}} & 2020-08-10 & 2020-09-10 & 18 & 92 & 3089 & 0.014 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.3201/eid2813.212348}{\textcolor{blue}{Malawi}} & 2020-10-14 & 2020-12-08 &  &  & 4261 & 0.078 & National & Low \\ 
-\hline 
-\href{https://saludpublica.mx/index.php/spm/article/view/12847}{\textcolor{blue}{Mexico}} & 2020-08-15 & 2020-11-15 & 3 & 12 & 944 & 0.187 & National & Low \\ 
-\hline 
-\href{https://mohp.gov.np/attachments/article/708/First%20Sero-prevalence\_final\_report\_04-04-2021.pdf}{\textcolor{blue}{Nepal}} & 2020-10-09 & 2020-10-22 &  &  & 3040 & 0.144 & National & Low \\ 
-\hline 
-\href{https://dx.doi.org/10.1001/jamanetworkopen.2022.36053}{\textcolor{blue}{Nigeria}} & 2021-06-29 & 2021-08-21 &  &  & 4904 & 0.789 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1111/irv.12932}{\textcolor{blue}{Norway}} & 2020-12-27 & 2021-02-13 &  &  & 1912 & 0.032 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1016/j.ijid.2021.09.062}{\textcolor{blue}{Oman}} & 2020-11-08 & 2020-11-19 & 5 &  & 4064 & 0.22 & National & Moderate \\ 
-\hline 
-\href{https://bmjopen.bmj.com/content/12/4/e055381.abstract}{\textcolor{blue}{Pakistan}} & 2020-10-21 & 2020-11-08 &  &  & 4998 & 0.0702 & National & Moderate \\ 
-\hline 
-\href{https://wwwnc.cdc.gov/eid/article/27/11/21-0636\_article}{\textcolor{blue}{Portugal}} & 2020-09-08 & 2020-10-14 &  &  & 13398 & 0.022 & National & Moderate \\ 
-\hline 
-\href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702669/}{\textcolor{blue}{Senegal}} & 2020-06-15 & 2020-10-15 &  &  & 3231 & 0.204 & National & High \\ 
-\hline 
-\href{https://papers.ssrn.com/sol3/papers.cfm?abstract\_id=3826194}{\textcolor{blue}{Singapore}} & 2020-11-15 & 2020-12-15 & 23 & 83 & 937 & 0.0016 & National & High \\ 
-\hline 
-\href{https://dx.doi.org/10.1016/j.cmi.2021.03.009}{\textcolor{blue}{Slovenia}} & 2020-10-17 & 2020-11-10 &  & 99 & 1211 & 0.0429 & National & Low \\ 
-\hline 
-\href{https://assets.researchsquare.com/files/rs-690372/v2\_covered.pdf?c=1627923426}{\textcolor{blue}{South Africa}} & 2021-01-15 & 2021-05-15 & 15 & 69 & 16762 & 0.474 & National & Moderate \\ 
-\hline 
-\href{https://bmjopen.bmj.com/content/11/4/e049837.abstract}{\textcolor{blue}{Rep. of Korea}} & 2020-09-24 & 2020-12-09 & 18 & 86 & 4085 & 0.0039 & National & Moderate \\ 
-\hline 
-\href{https://www.mscbs.gob.es/ciudadanos/ene-covid/docs/ESTUDIO\_ENE-COVID19\_INFORME\_FINAL.pdf}{\textcolor{blue}{Spain}} & 2020-06-08 & 2020-06-22 &  &  & 62167 & 0.052 & National & Low \\ 
-\hline 
-\href{https://www.folkhalsomyndigheten.se/contentassets/376f9021a4c84da08de18ac597284f0c/pavisning-antikroppar-genomgangen-covid-19-blodgivare-delrapport-2.pdf}{\textcolor{blue}{Sweden}} & 2020-11-23 & 2020-12-04 &  &  & 3183 & 0.07 & National & Moderate \\ 
-\hline 
-\href{https://dx.doi.org/10.1093/cid/ciab626}{\textcolor{blue}{USA}} & 2020-08-09 & 2020-12-08 & 18 &  & 4654 & 0.0471 & National & Low \\ 
-\hline 
-\href{https://www.gov.uk/government/publications/national-covid-19-surveillance-reports}{\textcolor{blue}{UK}} & 2020-08-24 & 2020-09-18 & 17 &  & 8230 & 0.061 & National & Low \\ 
-\hline 
-\href{https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(21)00053-X/fulltext}{\textcolor{blue}{Zambia}} & 2020-07-04 & 2020-07-27 &  &  & 2704 & 0.021 & National & Low \\ 
-\hline 
+           \hline 
+           \href{https://dx.doi.org/10.5694/mja2.51542}{\textcolor{blue}{Australia}} & 2020-11-03 & 2021-03-12 &  & 19 & 1685 & 0.0023 & National & High \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1007/s15010-021-01639-0}{\textcolor{blue}{Austria}} & 2020-06-05 & 2020-12-04 & 18 & 72 & 20228 & 0.025 & National & High \\ 
+           \hline 
+           \href{https://dx.doi.org/10.2807/1560-7917.ES.2022.27.9.2100419}{\textcolor{blue}{Belgium}} & 2020-10-12 & 2020-10-17 &  & 101 & 2966 & 0.0418 & National & Low \\ 
+           \hline 
+           \href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8225319/}{\textcolor{blue}{Brazil}} & 2020-05-14 & 2020-06-23 &  &  & 89362 & 0.023 & National & Moderate \\ 
+           \hline 
+           \href{https://serotracker.com/en/Explore}{\textcolor{blue}{Canada}} & 2021-04-13 & 2021-04-30 & 17 &  & 16931 & 0.2692 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1186/s12879-022-07045-7}{\textcolor{blue}{Chile}} & 2020-09-25 & 2020-11-25 & 7 & 94 & 2493 & 0.104 & National & Low \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1016/j.lana.2022.100195}{\textcolor{blue}{Colombia}} & 2020-09-21 & 2020-12-11 & 5 & 80 & 17863 & 0.3253 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.3390/pathogens10060774}{\textcolor{blue}{Croatia}} & 2020-12-15 & 2021-02-15 &  &  & 1436 & 0.251 & National & High \\ 
+           \hline 
+           \href{https://doi.org/10.1038/s43856-022-00080-0}{\textcolor{blue}{Czechia}} & 2021-02-01 & 2021-03-31 & 18 &  & 19548 & 0.51 & National & High \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1007/s10654-021-00796-8}{\textcolor{blue}{Denmark}} & 2020-12-01 & 2020-12-31 & 12 &  & 4044 & 0.043 & National & Low \\ 
+           \hline 
+           \href{https://dx.doi.org/10.3389/fmed.2022.933260}{\textcolor{blue}{Ecuador}} & 2020-10-12 & 2020-10-19 &  &  & 1250 & 0.1168 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1186/s41182-022-00448-x}{\textcolor{blue}{Egypt}} & 2021-01-15 & 2021-06-15 &  &  & 2360 & 0.463 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1038/s41467-021-23233-6}{\textcolor{blue}{France}} & 2020-05-11 & 2020-05-17 &  &  & 3592 & 0.0493 & National & Low \\ 
+           \hline 
+           \href{https://www.ifo.de/en/publikationen/2020/monograph-authorship/die-deutschen-und-corona}{\textcolor{blue}{Germany}} & 2020-10-26 & 2020-11-18 & 18 &  & 9929 & 0.011 & National & Moderate \\ 
+           \hline 
+           \href{https://revistas.ucr.ac.cr/index.php/psm/article/view/43261/46175}{\textcolor{blue}{Honduras}} & 2020-06-16 & 2020-06-23 & 5 &  & 792 & 0.062 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1007/s11357-020-00226-9}{\textcolor{blue}{Hungary}} & 2020-05-01 & 2020-05-16 & 14 &  & 10474 & 0.0068 & National & Low \\ 
+           \hline 
+           \href{http://dx.doi.org/10.1016/j.ijid.2021.05.040}{\textcolor{blue}{India}} & 2020-12-18 & 2021-01-06 & 10 &  & 28598 & 0.241 & National & Low \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1186/s12889-022-13464-7}{\textcolor{blue}{Iran}} & 2021-01-15 & 2021-03-15 & 10 & 90 & 7411 & 0.342 & National & Low \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1007/s10654-021-00749-1}{\textcolor{blue}{Israel}} & 2020-06-28 & 2020-09-14 &  &  & 54357 & 0.046 & National & Moderate \\ 
+           \hline 
+           \href{https://www.istat.it/it/files//2020/08/ReportPrimiRisultatiIndagineSiero.pdf}{\textcolor{blue}{Italy}} & 2020-05-25 & 2020-07-15 &  &  & 64660 & 0.025 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.3201/eid2702.204088}{\textcolor{blue}{Japan}} & 2020-06-01 & 2020-06-07 & 20 &  & 7950 & 0.001 & National & Moderate \\ 
+           \hline 
+           \href{http://dx.doi.org/10.1016/j.onehlt.2021.100292}{\textcolor{blue}{Jordan}} & 2020-12-27 & 2021-01-06 &  &  & 5044 & 0.342 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.3390/ijerph19042263}{\textcolor{blue}{Kazakhstan}} & 2020-07-16 & 2021-07-07 &  &  & 85346 & 0.63 & National & High \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1001/jama.2021.15265}{\textcolor{blue}{Kenya}} & 2021-01-03 & 2021-03-15 & 16 & 64 & 3018 & 0.485 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1186/s12879-022-07031-z}{\textcolor{blue}{Lebanon}} & 2020-12-07 & 2021-01-15 &  &  & 2058 & 0.185 & National & Low \\ 
+           \hline 
+           \href{https://www.journals.vu.lt/AML/article/view/22344}{\textcolor{blue}{Lithuania}} & 2020-08-10 & 2020-09-10 & 18 & 92 & 3089 & 0.014 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.3201/eid2813.212348}{\textcolor{blue}{Malawi}} & 2020-10-14 & 2020-12-08 &  &  & 4261 & 0.078 & National & Low \\ 
+           \hline 
+           \href{https://saludpublica.mx/index.php/spm/article/view/12847}{\textcolor{blue}{Mexico}} & 2020-08-15 & 2020-11-15 & 3 & 12 & 944 & 0.187 & National & Low \\ 
+           \hline 
+           \href{https://mohp.gov.np/attachments/article/708/First%20Sero-prevalence\_final\_report\_04-04-2021.pdf}{\textcolor{blue}{Nepal}} & 2020-10-09 & 2020-10-22 &  &  & 3040 & 0.144 & National & Low \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1001/jamanetworkopen.2022.36053}{\textcolor{blue}{Nigeria}} & 2021-06-29 & 2021-08-21 &  &  & 4904 & 0.789 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1111/irv.12932}{\textcolor{blue}{Norway}} & 2020-12-27 & 2021-02-13 &  &  & 1912 & 0.032 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1016/j.ijid.2021.09.062}{\textcolor{blue}{Oman}} & 2020-11-08 & 2020-11-19 & 5 &  & 4064 & 0.22 & National & Moderate \\ 
+           \hline 
+           \href{https://bmjopen.bmj.com/content/12/4/e055381.abstract}{\textcolor{blue}{Pakistan}} & 2020-10-21 & 2020-11-08 &  &  & 4998 & 0.0702 & National & Moderate \\ 
+           \hline 
+           \href{https://wwwnc.cdc.gov/eid/article/27/11/21-0636\_article}{\textcolor{blue}{Portugal}} & 2020-09-08 & 2020-10-14 &  &  & 13398 & 0.022 & National & Moderate \\ 
+           \hline 
+           \href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702669/}{\textcolor{blue}{Senegal}} & 2020-06-15 & 2020-10-15 &  &  & 3231 & 0.204 & National & High \\ 
+           \hline 
+           \href{https://papers.ssrn.com/sol3/papers.cfm?abstract\_id=3826194}{\textcolor{blue}{Singapore}} & 2020-11-15 & 2020-12-15 & 23 & 83 & 937 & 0.0016 & National & High \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1016/j.cmi.2021.03.009}{\textcolor{blue}{Slovenia}} & 2020-10-17 & 2020-11-10 &  & 99 & 1211 & 0.0429 & National & Low \\ 
+           \hline 
+           \href{https://assets.researchsquare.com/files/rs-690372/v2\_covered.pdf?c=1627923426}{\textcolor{blue}{South Africa}} & 2021-01-15 & 2021-05-15 & 15 & 69 & 16762 & 0.474 & National & Moderate \\ 
+           \hline 
+           \href{https://bmjopen.bmj.com/content/11/4/e049837.abstract}{\textcolor{blue}{Rep. of Korea}} & 2020-09-24 & 2020-12-09 & 18 & 86 & 4085 & 0.0039 & National & Moderate \\ 
+           \hline 
+           \href{https://www.mscbs.gob.es/ciudadanos/ene-covid/docs/ESTUDIO\_ENE-COVID19\_INFORME\_FINAL.pdf}{\textcolor{blue}{Spain}} & 2020-06-08 & 2020-06-22 &  &  & 62167 & 0.052 & National & Low \\ 
+           \hline 
+           \href{https://www.folkhalsomyndigheten.se/contentassets/376f9021a4c84da08de18ac597284f0c/pavisning-antikroppar-genomgangen-covid-19-blodgivare-delrapport-2.pdf}{\textcolor{blue}{Sweden}} & 2020-11-23 & 2020-12-04 &  &  & 3183 & 0.07 & National & Moderate \\ 
+           \hline 
+           \href{https://dx.doi.org/10.1093/cid/ciab626}{\textcolor{blue}{USA}} & 2020-08-09 & 2020-12-08 & 18 &  & 4654 & 0.0471 & National & Low \\ 
+           \hline 
+           \href{https://www.gov.uk/government/publications/national-covid-19-surveillance-reports}{\textcolor{blue}{UK}} & 2020-08-24 & 2020-09-18 & 17 &  & 8230 & 0.061 & National & Low \\ 
+           \hline 
+           \href{https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(21)00053-X/fulltext}{\textcolor{blue}{Zambia}} & 2020-07-04 & 2020-07-27 &  &  & 2704 & 0.021 & National & Low \\ 
+           \hline 
 
     \end{tabular}
     \end{center}
diff --git a/docs/tex/user/rragonnet/sm_covid.pdf b/docs/tex/user/rragonnet/sm_covid.pdf
index 7a9c776e1..1ced2957b 100644
Binary files a/docs/tex/user/rragonnet/sm_covid.pdf and b/docs/tex/user/rragonnet/sm_covid.pdf differ
diff --git a/notebooks/user/rragonnet/project_specific/School_Closure/make_serotable.ipynb b/notebooks/user/rragonnet/project_specific/School_Closure/make_serotable.ipynb
index 61ff5e75b..903fde3f8 100644
--- a/notebooks/user/rragonnet/project_specific/School_Closure/make_serotable.ipynb
+++ b/notebooks/user/rragonnet/project_specific/School_Closure/make_serotable.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -26,7 +26,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "44"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df = dfs['national']\n",
+    "len(df)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -46,7 +67,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -105,28 +126,110 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\\textbf{country} & \\textbf{sampling start date} & \\textbf{sampling end date} & \\textbf{age min} & \\textbf{age max} & \\textbf{denom. value} & \\textbf{serum pos prevalence} & \\textbf{estimate grade} & \\textbf{overall risk of bias} \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.5694/mja2.51542}{\\textcolor{blue}{Australia}} & 2020-11-03 & 2021-03-12 &  & 19 & 1685 & 0.0023 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1007/s15010-021-01639-0}{\\textcolor{blue}{Austria}} & 2020-06-05 & 2020-12-04 & 18 & 72 & 20228 & 0.025 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.2807/1560-7917.ES.2022.27.9.2100419}{\\textcolor{blue}{Belgium}} & 2020-10-12 & 2020-10-17 &  & 101 & 2966 & 0.0418 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8225319/}{\\textcolor{blue}{Brazil}} & 2020-05-14 & 2020-06-23 &  &  & 89362 & 0.023 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://serotracker.com/en/Explore}{\\textcolor{blue}{Canada}} & 2021-04-13 & 2021-04-30 & 17 &  & 16931 & 0.2692 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1186/s12879-022-07045-7}{\\textcolor{blue}{Chile}} & 2020-09-25 & 2020-11-25 & 7 & 94 & 2493 & 0.104 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1016/j.lana.2022.100195}{\\textcolor{blue}{Colombia}} & 2020-09-21 & 2020-12-11 & 5 & 80 & 17863 & 0.3253 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.3390/pathogens10060774}{\\textcolor{blue}{Croatia}} & 2020-12-15 & 2021-02-15 &  &  & 1436 & 0.251 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://doi.org/10.1038/s43856-022-00080-0}{\\textcolor{blue}{Czechia}} & 2021-02-01 & 2021-03-31 & 18 &  & 19548 & 0.51 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1007/s10654-021-00796-8}{\\textcolor{blue}{Denmark}} & 2020-12-01 & 2020-12-31 & 12 &  & 4044 & 0.043 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.3389/fmed.2022.933260}{\\textcolor{blue}{Ecuador}} & 2020-10-12 & 2020-10-19 &  &  & 1250 & 0.1168 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1186/s41182-022-00448-x}{\\textcolor{blue}{Egypt}} & 2021-01-15 & 2021-06-15 &  &  & 2360 & 0.463 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1038/s41467-021-23233-6}{\\textcolor{blue}{France}} & 2020-05-11 & 2020-05-17 &  &  & 3592 & 0.0493 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.ifo.de/en/publikationen/2020/monograph-authorship/die-deutschen-und-corona}{\\textcolor{blue}{Germany}} & 2020-10-26 & 2020-11-18 & 18 &  & 9929 & 0.011 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://revistas.ucr.ac.cr/index.php/psm/article/view/43261/46175}{\\textcolor{blue}{Honduras}} & 2020-06-16 & 2020-06-23 & 5 &  & 792 & 0.062 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1007/s11357-020-00226-9}{\\textcolor{blue}{Hungary}} & 2020-05-01 & 2020-05-16 & 14 &  & 10474 & 0.0068 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{http://dx.doi.org/10.1016/j.ijid.2021.05.040}{\\textcolor{blue}{India}} & 2020-12-18 & 2021-01-06 & 10 &  & 28598 & 0.241 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1186/s12889-022-13464-7}{\\textcolor{blue}{Iran}} & 2021-01-15 & 2021-03-15 & 10 & 90 & 7411 & 0.342 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1007/s10654-021-00749-1}{\\textcolor{blue}{Israel}} & 2020-06-28 & 2020-09-14 &  &  & 54357 & 0.046 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.istat.it/it/files//2020/08/ReportPrimiRisultatiIndagineSiero.pdf}{\\textcolor{blue}{Italy}} & 2020-05-25 & 2020-07-15 &  &  & 64660 & 0.025 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.3201/eid2702.204088}{\\textcolor{blue}{Japan}} & 2020-06-01 & 2020-06-07 & 20 &  & 7950 & 0.001 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{http://dx.doi.org/10.1016/j.onehlt.2021.100292}{\\textcolor{blue}{Jordan}} & 2020-12-27 & 2021-01-06 &  &  & 5044 & 0.342 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.3390/ijerph19042263}{\\textcolor{blue}{Kazakhstan}} & 2020-07-16 & 2021-07-07 &  &  & 85346 & 0.63 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1001/jama.2021.15265}{\\textcolor{blue}{Kenya}} & 2021-01-03 & 2021-03-15 & 16 & 64 & 3018 & 0.485 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1186/s12879-022-07031-z}{\\textcolor{blue}{Lebanon}} & 2020-12-07 & 2021-01-15 &  &  & 2058 & 0.185 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.journals.vu.lt/AML/article/view/22344}{\\textcolor{blue}{Lithuania}} & 2020-08-10 & 2020-09-10 & 18 & 92 & 3089 & 0.014 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.3201/eid2813.212348}{\\textcolor{blue}{Malawi}} & 2020-10-14 & 2020-12-08 &  &  & 4261 & 0.078 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://saludpublica.mx/index.php/spm/article/view/12847}{\\textcolor{blue}{Mexico}} & 2020-08-15 & 2020-11-15 & 3 & 12 & 944 & 0.187 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://mohp.gov.np/attachments/article/708/First%20Sero-prevalence\\_final\\_report\\_04-04-2021.pdf}{\\textcolor{blue}{Nepal}} & 2020-10-09 & 2020-10-22 &  &  & 3040 & 0.144 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1001/jamanetworkopen.2022.36053}{\\textcolor{blue}{Nigeria}} & 2021-06-29 & 2021-08-21 &  &  & 4904 & 0.789 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1111/irv.12932}{\\textcolor{blue}{Norway}} & 2020-12-27 & 2021-02-13 &  &  & 1912 & 0.032 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1016/j.ijid.2021.09.062}{\\textcolor{blue}{Oman}} & 2020-11-08 & 2020-11-19 & 5 &  & 4064 & 0.22 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://bmjopen.bmj.com/content/12/4/e055381.abstract}{\\textcolor{blue}{Pakistan}} & 2020-10-21 & 2020-11-08 &  &  & 4998 & 0.0702 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://wwwnc.cdc.gov/eid/article/27/11/21-0636\\_article}{\\textcolor{blue}{Portugal}} & 2020-09-08 & 2020-10-14 &  &  & 13398 & 0.022 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702669/}{\\textcolor{blue}{Senegal}} & 2020-06-15 & 2020-10-15 &  &  & 3231 & 0.204 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://papers.ssrn.com/sol3/papers.cfm?abstract\\_id=3826194}{\\textcolor{blue}{Singapore}} & 2020-11-15 & 2020-12-15 & 23 & 83 & 937 & 0.0016 & National & High \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1016/j.cmi.2021.03.009}{\\textcolor{blue}{Slovenia}} & 2020-10-17 & 2020-11-10 &  & 99 & 1211 & 0.0429 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://assets.researchsquare.com/files/rs-690372/v2\\_covered.pdf?c=1627923426}{\\textcolor{blue}{South Africa}} & 2021-01-15 & 2021-05-15 & 15 & 69 & 16762 & 0.474 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://bmjopen.bmj.com/content/11/4/e049837.abstract}{\\textcolor{blue}{Rep. of Korea}} & 2020-09-24 & 2020-12-09 & 18 & 86 & 4085 & 0.0039 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.mscbs.gob.es/ciudadanos/ene-covid/docs/ESTUDIO\\_ENE-COVID19\\_INFORME\\_FINAL.pdf}{\\textcolor{blue}{Spain}} & 2020-06-08 & 2020-06-22 &  &  & 62167 & 0.052 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.folkhalsomyndigheten.se/contentassets/376f9021a4c84da08de18ac597284f0c/pavisning-antikroppar-genomgangen-covid-19-blodgivare-delrapport-2.pdf}{\\textcolor{blue}{Sweden}} & 2020-11-23 & 2020-12-04 &  &  & 3183 & 0.07 & National & Moderate \\\\ \n",
+      "\\hline \n",
+      "\\href{https://dx.doi.org/10.1093/cid/ciab626}{\\textcolor{blue}{USA}} & 2020-08-09 & 2020-12-08 & 18 &  & 4654 & 0.0471 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.gov.uk/government/publications/national-covid-19-surveillance-reports}{\\textcolor{blue}{UK}} & 2020-08-24 & 2020-09-18 & 17 &  & 8230 & 0.061 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\\href{https://www.thelancet.com/journals/langlo/article/PIIS2214-109X(21)00053-X/fulltext}{\\textcolor{blue}{Zambia}} & 2020-07-04 & 2020-07-27 &  &  & 2704 & 0.021 & National & Low \\\\ \n",
+      "\\hline \n",
+      "\n"
+     ]
+    }
+   ],
    "source": [
     "s = make_latex_table(\"national\")"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "type(dfs['national']['url'][3]) == float"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {