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, 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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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. 

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, 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. 

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. 

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. 

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. 

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. 

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. 

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.