muhamad riduan daud, petrick periyasamy, kok-yong chin, najma kori, ummu afeera zainulabid, sheng qian yew, nur ezzaty mohammad kazmin, xiong khee cheong.  (2026).  low bone mineral density in men living with hiv on tenofovir antiretroviral therapy: a cross-sectional exploratory study from a malaysian tertiary hospital.  - tropical medicine and infectious disease.  1 - 14. 

shausha mohamed anees, xiong khee cheong, hui jan tan, najma kori, wan nur nafisah wan yahya, rosnah sutan, petrick periyasamy.  (2026).  the prevalence, predictors, and in-hospital outcomes of stroke-associated infection in acute ischemic stroke: a malaysian prospective cohort study.  - journal of clinical medicine .  1 - 15. 

nor adzimah johdi , noraidatulakma abdullah , ying-xian goh, joanna ooi su min, nor azila muhammad azami , muhammad irfan abdul jalal , azmawati mohammed nawi, norfazilah ahmad , mohd rohaizat hassan, anita sulong, najma kori, petrick periyasamy, faisal hamid, norrafidah md sapuan, sheela bai pannir selvam, noriah hajib, norlaila mustafa, noor zetti zainol rashid, sharifah azura salleh, hamidah alias, mohd shahrir mohamed said, siti norlia othman, poh bee koon, faizal amri hamzah, shamsuriani md jamal, razman jarmin, hanita othman, khamsiah nawawi, hanafiah harunarashid, mohammad nizam mokhtar, wan rahiza wan mat, azwa shawani kamalul arifin, aisyatul najihah khuzaimi, nazihah abd jalal, norliza ismail, nurul ain mhd yusuf, andri dauni, wan ahmad faisal wan sallam, ahmad syafiq shafie, mohd arman kamaruddin, rahman jamal.  (2026).  risk factors for covid-19 symptom severity across clinical categories among hospitalised patients in kuala lumpur, malaysia: a prospective cohort study.  - bmj open.  1 - 13. 

nor azila muhammad azami, joanna su min ooi, noraidatulakma abdullah, azmawati mohammed nawi, norfazilah ahmad, mohd rohaizat hassan, anita sulong, mohammad nizam mokhtar, petrick periyasamy, najma kori, faizal amri hamzah, shamsuriani md jamal, mohamed faisal abdul hamid, wan rahiza wan mat, razman jarmin, noriah hajib, sheela bai pannir selvam, azwa shawani kamalul arifin, mira farzana mohamad mokhtar, ying-xian goh, ryia illani mohd yunos, khairun ghaffar, muhiddin ishak, nur alyaa afifah md shahri, siti nur hasanah mohd yusuf, nazihah abd jalal, norliza ismail, nurul ain mhd yusuf, mohd arman kamaruddin, and rahman jamal.  (2026).  baseline cohort profile: clinical and molecular characterisation of sars-cov-2 infected patients recruited into a longitudinal covid-19 cohort study (covgen) in malaysia .  - bmc infectious diseases.  1 - 23. 

ariff khalid, jacinta santhanam, mohd nizam tzar, ang-lim chua, sharifah fadilah abdul wahid, wan rahiza wan mat, raha abd rahman, petrick periyasamy .  (2025).  evaluation of a pcr-based lateral flow device for detecting aspergillus and candida species from clinical specimens.  - heliyon.  1 - 8. 

ding ch, wahab aa, abd rahman na, zaihan s, abd shukor n, periyasamy p, cheong xk, mokhtar mn.  (2026).  a soft tissue lesion on the scalp as a peculiar source of disseminated cryptococcosis.  - tropical biomedicine.  159 - 162. 

ummu afeera zainulabid, cheong xiong khee, najma kori, jasmine kueh wui thing, isa mohamed rose, ramliza ramli, muhammad zahid abdul muien, petrick periyasamy, siti roszilawati ramli.  (2026).  unmasking bartonella henselae: a forgotten cause of hepatosplenic and marrow involvement.  - tropical biomedicine .  219 - 222. 

siti norlia othman, siti nurazizah mat asripin, zetti zainol rashid, petrick periyasamy, najma kori.  (2025).  sars-cov-2 antibody responses in covid-19 confirmed cases in a university hospital.  - malaysian journal of pathology.  401 - 414. 

wan nabilatul huda wan ghazali, nur izati mustapa, petrick periyasamy, suresh kumar chidambaram, nor aziyah mat rahim, zetti zainol rashid.  (2025).  cytomegalovirus infections in hiv/aids patients: prevalence, disease-associated factors and ganciclovir resistance.  - malaysian journal of pathology.  415 - 429. 

zainina zainal abidin, zetti zainol rashid, umi kalsom ali, wong kon ken, petrick periyasamy, mohd noor mat isa.  (2024).  sars-cov-2 infection in hiv patients: clinical characteristics, outcomes and duration of positivity.  - malaysian journal of pathology.  492 - 492. 

muhamad riduan daud, petrick periyasamy, kok-yong chin, najma kori, ummu afeera zainulabid, sheng qian yew, nur ezzaty mohammad kazmin, xiong khee cheong.  (2026).  low bone mineral density in men living with hiv on tenofovir antiretroviral therapy: a cross-sectional exploratory study from a malaysian tertiary hospital.  - tropical medicine and infectious disease.  1 - 14. 

chu keat lim, xiong khee cheong, juen kiem tan, ummu afeera zainulabid, hui jan tan ,najma kori, petrick ramesh periyasamy.  (2026).  hemichorea-hemiballismus as presentation of toxoplasma gondii encephalitis in an immunocompromised host.  - cureus.  1 - 7. 

shausha mohamed anees, xiong khee cheong, hui jan tan, najma kori, wan nur nafisah wan yahya, rosnah sutan, petrick periyasamy.  (2026).  the prevalence, predictors, and in-hospital outcomes of stroke-associated infection in acute ischemic stroke: a malaysian prospective cohort study.  - journal of clinical medicine .  1 - 15. 

ummu afeera zainulabid, hui-min neoh, xiong khee cheong, najma kori, chee lan lau, sunita sulaiman, siti rokiah yusof, nur ayuni ahamad faudzi, maliha farah nurhazirah yahya, han ming gan, sharifah azura salleh, petrick periyasamy.  (2026).  the clonality and dissemination of carbapenem resistant klebsiella pneumoniae in a tertiary hospital in malaysia: a retrospective analysis from 2022 to 2023.  - osong public health and research perspective.  262 - 271. 

ding ch, wahab aa, abd rahman na, zaihan s, abd shukor n, periyasamy p, cheong xk, mokhtar mn.  (2026).  a soft tissue lesion on the scalp as a peculiar source of disseminated cryptococcosis.  - tropical biomedicine.  159 - 162. 

rozita mohd, lydia kamaruzaman, prisaana ramakrishnan, shamsul azhar shah, najma kori, petrick periyasamy.  (2023).  the prevalence of chronic kidney disease (ckd) and its associated risk factors in people living with human immunodeficiency virus (plhiv).  - kidney international reports .  164 - 165. 

sharmili vidyadaran, mohan arumugam.  (2025).  cytokine storm: inflammation can harm.  - .  1 - 12. 

muhamaad razis ismail, dr petrick @ ramesh k periyasamy.  (2025).  budak senang kena.  - my metro.  . 

putri sabrina mohamed yusoff , norsyahida arifin , nurul shazalina zainudin ,nurulhasanah othman , rahmah noordin , asmahani azira abdu sani , wan mohd aizat wan kamaruddin , petrick periyasamy , wong kon ken , emelia osman .  (2025).  pengenalpastian dan penghasilan penanda diagnostik protein enterocytozoon bieneusi (b7xj00) untuk mikosporidiosis tersebar.  - simposium parasitologi & perubatan tropika 2025.  . 

petrick @ ramesh a/l k periyasamy.  (2020).  demam campak boleh bawa maut.  - mingguan malaysia.  34. 

umi kalsom @ satariah ali, anita sulong, zetti zainol rashid, muttaqillah najihan abdul samat, wong kon ken, siti norlia othman, abdul hamydy abdul hamid, danori sardi, ainihayati noordin, petrick @ ramesh a/l k periasamy, najma kori, azmi baharudin.  (2020).  kriteria penerimaan / penolakan spesimen bagi ujian pengesanan rapid antigen covid-19 dan carta alir pemilihan pengujian covid-19.  - pengujian rapid ag covid-19, jabatan perkhidmatan makmal diagnostik, hospital canselor tuanku muhriz.  1-3. 

mohd rohaizat bin hassan, azmawati mohammed nawi, rozita hod, azimatun noor aizuddin, norfazilah ahmad, asrul bin abdul wahab, tzar mohd nizam bin khaithir, faiz daud, sharifah azura salleh, petrick @ ramesh, najma kori.  (2020).  bantuan penuh hctm: setinggi penghargaan rakyat malaysia.  - buletin bilik gerakan covid-19 hctm.  1-4. 

petrick periyasamy, faiz ruzman, sharifa ezat wan puteh.  (2026).  malaysia better prepared for nipah virus, but early detection remains tough.  - the sun.  . 

nurul dayana zainuddin, siti norlia othman, norzuriza mohd rais, hui-min neoh, meng ling moi, najma kori, petrick periyasamy and nor azila muhammad azami.  (2025).  differences in titers of neutralizing antibody in primary and secondary dengue patients admitted to a teaching hospital in malaysia.  - postgraduate research conference 2025.  . 

nurul syafiqah nabila abdul kadir, siti norlia othman, norzuriza mohd rais, hui-min neoh, meng ling moi, najma kori, petrick periyasamy and nor azila muhammad azami.  (2025).  association between viral factors and clinical manifestations observed in dengue patients in malaysia.  - postgraduate research conference 2025.  . 

xiong khee cheong, nik nuratiqah nik abeed, najma kori, boon hau ng, andrea ban yu-lin, ilham ismail, mahrunissa mahadi, petrick periyasamy .  (2025).  triple hits: concurrent pulmonary kaposi’s sarcoma, tuberculosis, and pneumocystis jirovecii pneumonia in a newly diagnosed hiv patient.  - 29th congress of apsr.  . 

muhamaad razis ismail, dr petrick @ ramesh k periyasamy.  (2025).  budak senang kena.  - my metro.  .