{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T15:54:43Z","timestamp":1785599683128,"version":"3.56.0"},"reference-count":76,"publisher":"Public Library of Science (PLoS)","issue":"11","license":[{"start":{"date-parts":[[2022,11,17]],"date-time":"2022-11-17T00:00:00Z","timestamp":1668643200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Kotra Pharma Educational Grant","award":["Proj-In-KOTRA-FAS-001"],"award-info":[{"award-number":["Proj-In-KOTRA-FAS-001"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Acute pharyngitis (AP) is a common reason for private primary care consultations, thus providing an avenue for widespread antibiotic intake among the community. However, there is limited data on the antibiotic prescription appropriateness and resistance information in the Malaysian private primary care setting, therefore, this study aimed to investigate the prevalence of isolated viruses and bacteria, antibiotic resistance patterns, antibiotic prescription patterns and appropriateness by general practitioners (GPs) and factors affecting antibiotic resistance and antibiotic prescription patterns. To investigate, a cross-sectional study was conducted among 205 patients presenting with AP symptoms at private primary care clinics in central Malaysia from 3<jats:sup>rd<\/jats:sup> January 2016 to 30<jats:sup>th<\/jats:sup> November 2016. Throat swabs were collected from 205 AP patients for two purposes: (i) the detection of four common respiratory viruses associated with AP via reverse-transcription real-time PCR (qRT-PCR); and (ii) bacterial identification using matrix-assisted laser desorption\/ionisation time-of-flight mass spectrometry (MALDI-TOF MS). Bacterial isolates were then subjected to antibiotic susceptibility screening and McIsaac scoring was calculated post-prescription based on GP selection of criteria. Generalized estimating equations analysis with multiple logistic regression was conducted to identify factors associated with presence of virus and antibiotic prescription. The results showed that 95.1% (195\/205) of patients had at least one of the four viruses, with rhinovirus (88.5%) being the most prevalent, followed by adenovirus (74.9%), influenza A virus (4.6%) and enterovirus (2.1%). A total of 862 non-repetitive colonies were isolated from the culture of throat swabs from 205 patients who were positive for bacteria. From a total of 22 genera, <jats:italic>Streptococcus<\/jats:italic> constitutes the most prevalent bacteria genus (40.9%), followed by <jats:italic>Neisseria<\/jats:italic> (20%), <jats:italic>Rothia<\/jats:italic> (13.0%), <jats:italic>Staphylococcus<\/jats:italic> (11%) and <jats:italic>Klebsiella<\/jats:italic> (4.9%). Only 5 patients carried group A beta-hemolytic streptococci (GABHS). We also report the presence of vancomycin-resistant <jats:italic>S<\/jats:italic>. <jats:italic>aureus<\/jats:italic> or VRSA (n = 9, 10.1%) among which one isolate is a multidrug-resistant methicillin-resistant <jats:italic>S<\/jats:italic>. <jats:italic>aureus<\/jats:italic> (MDR-MRSA), while 54.1% (n = 111) were found to carry at least one antibiotic-resistant bacteria species. Application of the McIsaac scoring system indicated that 87.8% (n = 180) of patients should not be prescribed antibiotics as the majority of AP patients in this study had viral pharyngitis. The antibiotic prescription appropriateness by applying post-prescription McIsaac scoring was able to rule out GABHS pharyngitis in this sample with a GABHS culture-positive sensitivity of 40% (n = 2\/5) and specificity of 90% (180\/200). In conclusion, antibiotic-resistant throat isolates and over-prescription of antibiotics were observed and McIsaac scoring system is effective in guiding GPs to determine occurrences of viral pharyngitis to reduce unnecessary antibiotic prescription.<\/jats:p>","DOI":"10.1371\/journal.pone.0277802","type":"journal-article","created":{"date-parts":[[2022,11,17]],"date-time":"2022-11-17T19:14:25Z","timestamp":1668712465000},"page":"e0277802","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":12,"title":["Respiratory microorganisms in acute pharyngitis patients: Identification, antibiotic prescription patterns and appropriateness, and antibiotic resistance in private primary care, central Malaysia"],"prefix":"10.1371","volume":"17","author":[{"given":"Zhuang Mian","family":"Bo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei Keat","family":"Tan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina Shook Cheng","family":"Chong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Munn Sann","family":"Lye","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seshatharran","family":"Parmasivam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shu Ting","family":"Pang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shobha Elizabeth","family":"Satkunananthan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui Yee","family":"Chong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ameen","family":"Malek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Batool Abdulhafidh Ahmed Mohammed","family":"Al-khazzan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benedict Lim Heng","family":"Sim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher Kwok Chong","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Renee Lay Hong","family":"Lim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0517-0610","authenticated-orcid":true,"given":"Crystale Siew Ying","family":"Lim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2022,11,17]]},"reference":[{"issue":"4","key":"pone.0277802.ref001","first-page":"709","article-title":"Multidrug-resistant bacteria in the community: an update","volume":"34","author":"D van Duin","year":"2020","journal-title":"Infectious Disease Clinics"},{"issue":"5","key":"pone.0277802.ref002","doi-asserted-by":"crossref","first-page":"520","DOI":"10.1038\/ja.2017.30","article-title":"The antibiotic resistance crisis, with a focus on the United States","volume":"70","author":"E Martens","year":"2017","journal-title":"The Journal of antibiotics"},{"key":"pone.0277802.ref003","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1146\/annurev.publhealth.28.021406.144020","article-title":"Community factors in the development of antibiotic resistance","volume":"28","author":"E. 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