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There is an acute need to develop new adjuvant therapies. To ensure that new therapies evaluated in animal models are translatable to humans, studies must evaluate clinically relevant and patient-important outcomes, including neurological symptoms and sequelae.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We developed and tested a functional observational battery to quantify the severity of a variety of relevant neurological and clinical symptoms in a rat model of bacterial meningitis. The functional observational battery included symptoms relating to general clinical signs, gait and posture abnormalities, involuntary motor movements, focal neurological signs, and neuromotor abnormalities which were scored according to severity and summed to obtain a combined clinical and neurological score. To test the functional observational battery, adult Sprague-Dawley rats were infected by intracisternal injection of a clinical isolate of<jats:italic>Streptococcus pneumoniae<\/jats:italic>. Rats were evaluated for 6\u2009days following the infection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Pneumococcal meningitis was not lethal in this model; however, it induced severe neurological symptoms. Most common symptoms were hearing loss (75% of infected vs 0% of control rats;<jats:italic>p<\/jats:italic>= 0.0003), involuntary motor movements (75% of infected vs 0% of control rats;<jats:italic>p<\/jats:italic>= 0.0003), and gait and posture abnormality (67% of infected vs 0% of control rats;<jats:italic>p<\/jats:italic>= 0.0013). Infected rats had a higher combined score when determined by the functional observational battery than control rats at all time points (24\u2009h 12.7 \u00b1 4.0 vs 4.0 \u00b1 2.0; 48\u2009h 17.3 \u00b1 7.1 vs 3.4 \u00b1 1.8; 6 days 17.8 \u00b1 7.4 vs 1.7 \u00b1 2.4;<jats:italic>p<\/jats:italic>&lt; 0.0001 for all).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The functional observational battery described here detects clinically relevant neurological sequelae of bacterial meningitis and could be a useful tool when testing new therapeutics in rat models of meningitis.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s40635-020-00331-1","type":"journal-article","created":{"date-parts":[[2020,8,8]],"date-time":"2020-08-08T08:03:36Z","timestamp":1596873816000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A functional observational battery for evaluation of neurological outcomes in a rat model of acute bacterial meningitis"],"prefix":"10.1186","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3780-901X","authenticated-orcid":false,"given":"Jane","family":"Fisher","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chiara","family":"Pavan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luisa S.","family":"Ohlmeier","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Nilson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Iben","family":"Lundgaard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adam","family":"Linder","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Bentzer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,8,8]]},"reference":[{"key":"331_CR1","doi-asserted-by":"crossref","first-page":"16074","DOI":"10.1038\/nrdp.2016.74","volume":"2","author":"D van de Beek","year":"2016","unstructured":"van de Beek D, Brouwer M, Hasbun R et al (2016) Community-acquired bacterial meningitis. 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