gokben ozbey, alfizah hanafiah, asif sukri, frantisek zigo, juliana arvaiova.  (2023).  evaluation of the therapy protocols and vaccines applied in the covid-19 pandemic.  - emerging science journal.  1-15. 

aswini kumareswaran, sophia ogechi ekeuku, norazlina mohamed, norliza muhammad, alfizah hanafiah, kok-lun pang, sok kuan wong, deborah chia hsin chew, kok-yong chin.  (2023).  the effects of tocotrienol on gut microbiota: a scoping review.  - life.  1-19. 

sandip patil, shaowei dong, devender sharma, bruno silvester lopes, alfizah hanafiah, xiaowen chen, feiqiu wen.  (2023).  molecular epidemiology and characterization of multidrug-resistant mrsa st398 and st239 in himachal pradesh, india.  - infection and drug resistance.  2339-2348. 

asif sukri, alfizah hanafiah, sandip patil, bruno s lopes.  (2023).  the potential of alternative therapies and vaccine candidates against helicobacter pylori.  - pharmaceuticals.  1-14. 

asif sukri, alfizah hanafiah, hamidah yusoff, nur atiqah shamsul nizam, zarith nameyrra, zhiqin wong and raja affendi raja ali.  (2022).  multidrug-resistant helicobacter pylori strains: a five-year surveillance study and its genome characteristics.  - antibiotics.  1-12. 

bruno s. lopes, alfizah hanafiah, ramesh nachimuthu, saravanan muthupandian, zarith nameyrra md nesran and sandip patil.  (2022).  the role of antimicrobial peptides as antimicrobial and antibiofilm agents in tackling the silent pandemic of antimicrobial resistance.  - molecules.  1-25. 

asif sukri, alfizah hanafiah, nik ritza kosai, mustafa mohammed taher, ramelah mohamed.  (2022).  new insight on the role of helicobacter pylori caga in the expression of cell surface antigens with important biological functions in gastric carcinogenesis.  - helicobacter.  1-8. 

asif sukri, alfizah hanafiah, and nik ritza kosai.  (2022).  the roles of immune cells in gastric cancer: anti-cancer or pro-cancer?.  - cancers.  1-14. 

nurnabila syafiqah muhamad rizal, hui-min neoh, ramliza ramli, petrick @ ramesh a/l k periyasamy, alfizah hanafiah ,muttaqillah najihan abdul samat, toh leong tan, kon ken wong, sheila nathan, sylvia chieng, seow hoon saw, bee yin khor.  (2021).  16s rrna gene next-generation sequencing (16sngs) for bacterial pathogen identification: pilot study in a malaysian teaching hospital.  - international journal of infectious diseases.  180-203. 

hasyanee binmaeil, alfizah hanafiah, isa mohamed rose, raja affendi raja ali.  (2021).  development and validation of multiplex quantitative pcr assay for detection of helicobacter pylori and mutations conferring resistance to clarithromycin and levofloxacin in gastric biopsy.  - infection and drug resistance.  4129-4145. 

asif sukri, bruno s. lopes and alfizah hanafiah.  (2021).  the emergence of multidrug-resistant helicobacter pylori in southeast asia: a systematic review on the trends and intervention strategies using antimicrobial peptides.  - antibiotics.  1-15. 

zalina ismail, valerie ting siau mei, alfizah hanafiah.  (2021).  prevalence of ampc beta-lactamase and extended spectrum beta-lactamase co-producer in escherichia coli and klebsiella species in a teaching hospital.  - international journal of antimicrobial agents.  6. 

alfizah hanafiah, shaza azlin razak, hui-min neoh, noraziah mohamad zin.  (2021).  genomic diversity of the type iv secretion system in helicobacter pylori strains isolated from patients in ukm medical centre.  - international journal of infectious diseases.  120-158. 

norliyana nordin, nurzam suhaila hussin, alfizah hanafiah, anita sulong.  (2021).  staphylococcal aureus bacteraemia: clinical characteristic & evaluation of prolex staph xtra latex agglutination test in the rapid identification of staphylococcus aureus.  - malaysian journal of pathology.  435-447. 

asif sukri, alfizah hanafiah, noraziah mohamad zin, nik ritza kosai.  (2020).  epidemiology and role of helicobacter pylori virulence factors in gastric cancer carcinogenesis.  - apmis.  150-161. 

alfizah hanafiah and bruno s. lopes.  (2020).  genetic diversity and virulence characteristics of helicobacter pylori isolates in different human ethnic groups.  - infection, genetics and evolution.  1-11. 

sophia ogechi ekeuku, benjamin ka seng thong, adam quraisiah, fazalda annuar alfizah hanafiah, nur azlina mohd fahami , kok-yong chin.  (2020).  the skeletal effects of short-term triple therapy in a rat model of gastric ulcer induced by helicobacter pylori infection.  - drug design, development and therapy.  5359-5366. 

alfizah hanafiah, shaza azlin razak, hui-min neoh, noraziah mohamad zin, bruno s. lopes.  (2020).  the heterogeneic distribution of helicobacter pylori cag pathogenicity island reflects different pathologies in multiracial malaysian population.  - the brazilian journal of infectious diseases.  545-551. 

nurnabila syafiqah muhamad rizal, hui-min neoh, ramliza ramli, petrick @ ramesh a/l k periyasamy, alfizah hanafiah, muttaqillah najihan abdul samat, toh leong tan, kon ken wong, sheila nathan, sylvia chieng, seow hoon saw, bee yin khor.  (2020).  advantages and limitations of 16s rrna next-generation sequencing for pathogen identification in the diagnostic microbiology laboratory: perspectives from a middle-income country.  - diagnostics.  1-19. 

quraisiah adam, fazalda annuar, alfizah hanafiah, nur azlina mohd fahami.  (2020).  in vitro study of anti-helicobacter pylori activity of honey: a systematic review.  - sains malaysiana.  411-420. 

asif sukri, alfizah hanafiah, nik ritza kosai, mustafa mohamed taher, isa mohamed rose & ramelah mohamed.  (2019).  optimization of cryopreserved single cell suspension of gastric epithelial cells for successful dotscantm antibody microarray.  - sains malaysiana.  1105-1110. 

alfizah hanafiah, hasyanee binmaeil, raja affendi raja ali, isa mohamed rose, bruno s. lopes.  (2019).  molecular characterization and prevalence of antibiotic resistance in helicobacter pylori isolates in kuala lumpur, malaysia..  - infection and drug resistance.  3051-3061. 

nurnabila syafiqah muhamad rizal, hui-min neoh, ramliza ramli, petrick @ ramesh a/l k periyasamy, alfizah hanafiah, muttaqillah najihan abdul samat, toh leong tan, kon ken wong, sheila nathan, sylvia chieng, seow hoon saw, bee yin khor.  (2019).  culture and biochemical testing versus 16s rrna gene sequencing for pathogen identification in the clinical microbiology laboratory: preliminary findings on cost comparison and breaking the bioinforma.  - infection & chemotherapy.  S94-S95. 

noraziah m zin, alfizah hanafiah, mohd badrin hanizam abdul rahim, muhamad mazlan kamaruddin, nur faizah abu bakar.  (2018).  the prevalence of helicobacter pylori primary resistance towards antibiotics using an epsilometer-test method.  - malaysian journal of microbiology.  . 

noraziah mohamad zin, alfizah hanafiah & nur hidayah masod.  (2018).  infeksi mycobacterium tuberculosis : data demografi dan perbandingan ujian kerentanan anti-tuberkulosis.  - sains malaysiana.  . 

asif sukri, alfizah hanafiah, nik ritza kosai, mustafa mohamed taher and isa mohamed rose.  (2017).  distribution of gastric adenocarcinoma subtypes in different ethnicities in kuala lumpur, malaysia.  - malaysian journal of pathology.  235-242. 

shirin biglari, alfizah hanafiah, shaliawani mohd puzi, ramliza ramli, md mostafizur rahman and bruno silvester lopes.  (2017).  antimicrobial resistance mechanisms and genetic diversity of multidrug-resistant acinetobacter baumannii isolated from a teaching hospital in malaysia.  - microbial drug resistance.  545-555. 

najmiyatul fadilah, alfizah hanafiah, hamizah razlan, zin qin wong, isa mohamed rose and md mostafizur rahman.  (2016).  multiplex pcr for detection of helicobacter pylori infection in gastric biopsies with lower inflammatory score.  - british journal of biomedical science.  180-187. 

m mohd sukri, a hanafiah, n nik mahmood, mmohamed taher, i mohamed rose, r mohamed.  (2016).  distribution of cd antigens in gastric adenocarcinoma cell line infected with different caga genotypes of helicobacter pylori strains.  - helicobacter.  115-116. 

asif sukri, alfizah hanafiah, nik ritza kosai, mustafa mohamed taher and isa mohamed rose.  (2016).  surface antigen profiling of helicobacter pylori-infected and -uninfected gastric cancer cells using antibody microarray.  - helicobacter.  417-427. 

nor zanariah zainol abidin, anita sulong, hanafiah alfizah, najihan abdul samat muttaqillah and chuan hun ding.  (2015).  molecular detection of the new delhi metallo b lactamase 1 gene in enterobacteriaceae isolates in a tertiary medical centre.  - malaysian journal of pathology.  . 

nor zanariah zainol abidin, anita sulong, hanafiah alfizah, chuan hun ding, najihan abdul samat muttaqillah, md mostafizur rahman.  (2015).  screening for new delhi metallo-beta-lactamase-1 in enterobacteriaceae: is there a role for the modified hodge test?.  - pakistan journal of medical sciences.  1340-1343. 

mm rahman, kk wong, h alfizah, s hussin, i isahak.  (2015).  influenza and respiratory syncytial viruses: efficacy of different diagnostic assays.  - pakistan journal of medical sciences.  791-794. 

alfizah, h., sarah, o.z.s., noraziah, m.z..  (2015).  interaction of imipenem and tigecycline against carbapenem-resistant acinetobacter baumanii: the relativity of synergism.  - sains malaysiana.  1061-1065. 

siti nur suaidah nasarudin, nurul shazalina zainudin, mekadina bernadus, azmawati mohd nawi, alfizah hanafiah and emelia osman.  (2015).  loop-mediated isothermal amplification for rapid molecular detection of enterocytozoon bieneusi in faecal specimens.  - journal of medical microbiology.  1329-34. 

shirin biglari, hanafiah alfizah, ramli ramliza, and md mostafizur rahman.  (2015).  molecular characterization of carbapenemase and cephalosporinase genes among clinical isolates of acinetobacter baumannii in a tertiary medical centre in malaysia.  - journal of medical microbiology.  53-58. 

m.m. rahman, k.k. wong, a. hanafiah, i. isahak.  (2014).  influenza and respiratory syncytial viral infections in malaysia: demographic and clinical perspective.  - pakistan journal of medical sciences.  30(1):161-165. 

rahman mm, wong kk, isahak i, rashid zz, alfizah h.  (2014).  identification of genotypes of influenza a virus in malaysia.  - pakistan journal of medical sciences.  1068-1071. 

mm rahman, kk wong, i isahak, zz rashid & h alfizah.  (2014).  phylogenetic analysis of respiratory syncytial virus identified in universiti kebangsaan malaysia medical centre.  - sains malaysiana.  43(5):739-744. 

hanafiah alfizah, ahmad norazah, razlan hamizah, and mohamed ramelah.  (2014).  resistotype of helicobacter pylori isolates: the impact on eradication outcome.  - journal of medical microbiology.  63(5):703-709. 

faisal rasheed, barry james campbell, hanafiah alfizah, andrea varro, rabaab zahra, yoshio yamaoka, and david mark pritchard.  (2014).  analysis of clinical isolates of helicobacter pylori in pakistan reveals high degrees of pathogenicity and high frequencies of antibiotic resistance.  - helicobacter.  387-399. 

h. alfizah, m.z. noraziah, m.y. chao, m.m. rahman, m. ramelah.  (2013).  helicobacter pylori: molecular detection of vaca gene and vacuolating activity in human gastric adenocarcinoma cells.  - clinica terapeutica.  164(4):301-305. 

hamat, r. a., nor amalina, e., malina, o., zamberi, s., alfizah, h., rizal, a. m., aminuddin, a. and ramelah, m..  (2013).  ethnic differences in the prevalence, clinical outcome and cag pathogenicity island (cagpai) virulence gene profiles of helicobacter pylori strains from malaysia.  - pertanika journal of tropical agricultural science.  36(4):289-298. 

shirin biglari, alfizah hanafiah, ramliza ramli, md mostafizur rahman, tzar mohd nizam khaitir.  (2013).  clinico-epidemiological nature and antibiotic susceptibility profile of acinetobacter species.  - pakistan journal of medical sciences.  19(2): 469-473. 

hanafiah alfizah, awang hamat rukman, ahmad norazah, razlan hamizah, mohamed ramelah.  (2013).  ethnicity association of helicobacter pylori virulence genotype and metronidazole susceptibility.  - world journal of gastroenterology.  19(8):1283-1291. 

h alfizah, a norazah ahmad, m ramelah.  (2012).  mutations analysis of antibiotic resistance genes and vaca genotypes in helicobacter pylori isolates in universiti kebangsaan malaysia medical centre.  - journal of gastroenterology & hepatology.  27(Suppl.1): 8. 

wong kon ken, m. m. rahman, alfizah hanafiah, ilina isahak.  (2012).  in-house developed light cycler real time polymerase chain reaction for rapid detection of respiratory syncytial virus at university kebangsaan medical centre, malaysia.  - pakistan journal of medical sciences.  28(5): 818-822. 

hanafiah alfizah, mohamed ramelah, abdul m. rizal, abdullah s. anwar and mohamed r. isa.  (2012).  association of malaysian helicobacter pylori virulence polymorphisms with severity of gastritis and patients` ethnicity.  - helicobacter.  17(5): 340-349. 

hanafiah alfizah and mohamed ramelah.  (2012).  variant of helicobacter pylori caga proteins induce different magnitude of morphological changes in gastric epithelial cells.  - malaysian journal of pathology.  34(1):29-34. 

saleh m. al-othrubi, alfizah hanafiah, son radu, humin neoh, rahaman jamal.  (2011).  rapid detection and e-test antimicrobial susceptibility testing of vibrio parahaemolyticus isolated from seafood and environmental sources in malaysia.  - saudi medical journal.  32(4):400-406. 

ramelah mohamed, alfizah hanafiah, isa m rose, mohd rizal a manaf, shiekh anwar abdullah, ismail sagap, a van belkum, jasmi a yaacob.  (2009).  helicobacter pylori caga gene variants in malaysians of different ethnicity.  - european journal of clinical microbiology and infectious diseases.  28(7):865-869. 

mohamed ramelah, ahmad aminuddin, hanafiah alfizah, mohd rose isa, ali yaacob jasmi, huck joo tan, a jamal a rahman, abdul manap rizal, m zawawi mazlam.  (2005).  caga gene variants in malaysian helicobacter pylori strains isolated from patients of different ethnic groups.  - fems immunology & medical microbiology.  44(2):239-42. 

m ramelah, h alfizah, a aminuddin, mr isa, n sukumar, am rizal, mz mazlam & ay jasmi.  (2004).  distinct genetic diversity of helicobacter pylori caga gene.  - medical journal of malaysia.  59(Supp C):36. 

h alfizah, aj nordiah, ws rozaidi.  (2004).  using pulsed-field gel electrophoresis in the molecular investigation of an outbreak of serratia marcescens infection in an intensive care unit.  - singapore medical journal.  45(5):214. 

h alfizah, a aminuddin, mr isa, i sagap, ay jasmi, am rizal & m ramelah.  (2004).  clinical relevance of the baba2-positive helicobacter pylori clinical isolates in malaysia.  - medical journal of malaysia.  59(Supp C):37. 

a. norazah, v.k.e. lim, m.y. rohani, h. alfizah, y.t. koh and a.g.m. kamel.  (2003).  a major methicillin-resistant staphylococcus aureus clone predominates in malaysian hospitals.  - epidemiology infection.  130:407-411. 

ny boo, aj nordiah, h alfizah, ah nor rohaini and vke lim.  (2001).  contamination of breast milk obtained by manual expression and breast pumps in mothers of very low birthweight infants.  - journal of hospital infection.  49(4):274-281.