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107 testsMean quarterly HBV tests were 107 ± 17 during October–December in Freetown, Sierra Leone.

Sierra Leonehépatite Bobserved October-Decemberpublished 2023Impact of COVID-19 on Hepatitis B Screening in Sierra Leone: Insights from a Community Phaeurope_pmcdocument of 8 observationsDOI 10.1101/2023.05.24.23290418

53,244 dosesThe median monthly uptake of total IPTp was 53,244 before COVID-19.

Sierra Leonepaludismepublished 2025Impact of the COVID-19 pandemic on the uptake of intermittent sulphadoxine-pyrimethamine feurope_pmcdocument of 5 observations

16.3 %La Sierra Leone a une prévalence de drépanocytose de 16,3 %.

Sierra LeonedrépanocytoseHAL · Unilimdocument of 75 observations

17.3 %Among 23 patients with chronic pulmonary aspergillosis (CPA), 18 (17.3%) had past TB.

Sierra Leonepulmonary aspergillosis · tuberculoseobserved November 2021 to July 2022published 2023PLoS neglected tropical diseaseseurope_pmcdocument of 9 observations

3.07 %Kaposi sarcoma was diagnosed in 3.07% of young HIV patients aged 15 to 24 years at a major hospital in Sierra Leone.

Sierra Leonesarcome de Kaposi · VIH/sidapublished 2023Prevalence and factors associated with advanced HIV disease among young people aged 15 - 2europe_pmcdocument of 8 observationsDOI 10.1101/2023.11.07.23296880

65.3 %Among 49 bacterial isolates from surgical site infections, 65.3% were Enterobacteriaceae.

Sierra Leonesurgical site infectionobserved February and July 2021published 2022Antimicrobial resistance and infection controleurope_pmcdocument of 15 observationsDOI 10.1186/s13756-022-01078-y

3 countriesSporadic mpox transmission was observed in 3 countries as of February 2025: Sierra Leone, South Africa, and South Sudan.

Afrique du Sud · Sierra Leonempoxobserved February 2025Africa CDCdocument of 110 observations

180,000 deathsThe global annual estimate for cryptococcal disease related deaths exceeds 180,000.

Sierra Leoneméningite cryptococciquepublished 2019Prevalence and Mortality of Cryptococcal Disease in Adults with Advanced HIV in an Urban Teurope_pmcdocument of 2 observations

8.8 %Among pregnant women in Sierra Leone, P225H was found in 8.8% (n = 3/34) of cases.

Sierra LeoneVIH/sidapublished 2021Geneseurope_pmcdocument of 21 observationsDOI 10.3390/genes12091314

0.75 fractionThree fourths of global cryptococcal disease-related deaths occur in sub-Saharan Africa.

Sierra Leoneméningite cryptococciquepublished 2020BMC infectious diseaseseurope_pmcdocument of 7 observationsDOI 10.1186/s12879-020-4862-x

10.2 %Acinetobacter baumannii accounted for 10.2% of 49 bacterial isolates from surgical site infections.

Sierra Leonesurgical site infectionobserved February and July 2021published 2022Antimicrobial resistance and infection controleurope_pmcdocument of 15 observationsDOI 10.1186/s13756-022-01078-y

47 %Of 700 confirmed COVID-19 patients admitted to health facilities in Sierra Leone from March 2020 to March 2021, 47% received antibiotics.

Sierra LeoneCOVID-19observed March 2020-March 2021published 2022International journal of environmental research and public healtheurope_pmcdocument of 3 observationsDOI 10.3390/ijerph19074005

6,600 casesIn Sierra Leone, there are probably over 6600 annual cases of severe asthma with fungal sensitization.

Sierra Leonesevere asthma with fungal sensitizationpublished 2021Therapeutic advances in infectious diseaseeurope_pmcdocument of 9 observations

40 %Less than 40% of people living with HIV in Sierra Leone know their status.

Sierra LeoneVIH/sidapublished 2019BMC research noteseurope_pmcdocument of 10 observations

75 %Oxygen therapy was documented in 75% of the articles on COVID-19 patients with sepsis or septic shock.

Sierra LeoneCOVID-19 · sepsis · septic shockpublished 2020Sepsis and septic shock in COVID-19: a scoping review of the research dataeurope_pmcdocument of 17 observationsDOI 10.21203/rs.3.rs-30474/v1

4,000 deathsLe nombre de décès liés à l'Ebola en Sierra Leone a atteint près de 4 000 décès en avril 2015.

Sierra Leonemaladie à virus Ebolaobserved avril 2015HAL · Unilimdocument of 82 observations

2.45 %Esophageal candidiasis was diagnosed in 2.45% of young HIV patients aged 15 to 24 years at a major hospital in Sierra Leone.

Sierra Leoneesophageal candidiasis · VIH/sidapublished 2023Prevalence and factors associated with advanced HIV disease among young people aged 15 - 2europe_pmcdocument of 8 observationsDOI 10.1101/2023.11.07.23296880

17.5 %Among 275 newly diagnosed people living with HIV (PWH) enrolled in the Sierra Leone HIV Cohort Study in Freetown from March to September 2021, 17.5% were multimorbid (had at least two noncommunicable diseases).

Sierra Leonenoncommunicable diseaseobserved March to September 2021published 2022Journal of clinical medicineeurope_pmcdocument of 9 observations

77.4 %Of the 2,083 newly diagnosed HIV-positive pregnant women, 1,612 (77.4%) were initiated on antiretroviral therapy (ART) at their first ANC visit.

Sierra LeoneVIH/sidaobserved January and December 2022published 2026PLOS global public healtheurope_pmcdocument of 6 observations

1.5 %National HIV prevalence in Sierra Leone is 1.5%.

Sierra LeoneVIH/sidapublished 2019BMC research noteseurope_pmcdocument of 10 observations

85,400 vaccine_doses85,400 Mpox vaccine doses were airlifted and delivered to Rwanda, Côte d’Ivoire, the Central African Republic, and Sierra Leone.

Rwanda · Sierra LeonempoxAfrica CDCdocument of 72 observations

49.3 %Among 306 adult participants in Freetown, Sierra Leone, 49.3% expressed a stigmatizing attitude towards people with HBV.

Sierra Leonehépatite Bpublished 2023Healthcare (Basel, Switzerland)europe_pmcdocument of 5 observationsDOI 10.3390/healthcare11020177

0.58 odds_ratioCompared with the pre-COVID-19 period, the odds of a successful treatment outcome for drug-resistant TB were 42% less during the COVID-19 period (OR 0.58, 95% CI 0.42 to 0.82).

Sierra Leonedrug-resistant TBobserved during COVID-19published 2025Effect of the COVID-19 pandemic on drug-resistant tuberculosis treatment outcomes at a nateurope_pmcdocument of 9 observations

12.2 %Among 49 bacterial isolates from surgical site infections, 12.2% were Enterococci.

Sierra Leonesurgical site infectionobserved February and July 2021published 2022Antimicrobial resistance and infection controleurope_pmcdocument of 15 observationsDOI 10.1186/s13756-022-01078-y

15.1 %Pneumonia was the indication for prescribing antibiotics in 15.1% of adult inpatients at Connaught Hospital in Freetown between October 2017 and February 2018.

Sierra Leonepneumonieobserved October 2017 to February 2018published 2020International journal of infectious diseases : IJID : official publication of the Internateurope_pmcdocument of 12 observations