Anas Abdullah Hamad

Anas Abdullah Hamad


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 February 2022 in Microbiology Spectrum
Verified
Journal Article
Open access
AHAnas Abdullah Hamad
Anas Abdullah Hamad
Mohamed SharafMohamed Sharaf
Mohamed Sharaf
MHManhal Ahmed Hamza
Manhal Ahmed Hamza
Samy SelimSamy Selim
Samy Selim
HHHelal F. Hetta
Helal F. Hetta
WKWaleed El Kazzaz
Waleed El Kazzaz
Researchers analyzed how lifestyle factors affect the overall health of people with bacterial infections from the water. The article describes significance of the research because many people do not have access to clean, safe drinking water where this water is essential to life, and many die of waterborne bacterial infections.

24 July 2024 in Journal of Parasitic Diseases
Verified
Journal Article
Closed access
PDF file
AHAnas Abdullah Hamad
Anas Abdullah Hamad
HMHamssa Majid Mustafa
Hamssa Majid Mustafa
OMOsama A. Mohsein
Osama A. Mohsein

17 November 2022 in PLOS ONE
Verified
Journal Article
Open access
PDF file
ZDZahra Dargahi
Zahra Dargahi
AHAnas Abdullah Hamad
Anas Abdullah Hamad
ASAhmad Farajzade Sheikh
Ahmad Farajzade Sheikh
NKNazanin Ahmad Khosravi
Nazanin Ahmad Khosravi
SFShahla Samei Fard
Shahla Samei Fard
ADAram Asareh zadegan dezfuli
Aram Asareh zadegan dezfuli
Ventilator-associated pneumonia (VAP) is a prevalent nosocomial illness in mechanically ventilated patients. Hence, the aim of this study was to investigate the pattern of antibiotic resistance and biofilm formation of bacterial profiles from Endotracheal Tubes of patients hospitalized in an intensive care unit in southwest Iran. According to the standard operating method, the microbiological laboratory conducts bacteria culture and susceptibility testing on endotracheal Tube samples suspected of carrying a bacterial infection. The Clinical and laboratory standards institute (CLSI) techniques are used to determine the Antimicrobial resistance (AMR) of bacterial isolates to antibiotics using the disk diffusion method. The crystal violet staining method was used to assess the biofilm-forming potential of isolates in a 96-well microtiter plate. In total, (51%) GPBs were included in this study. The isolated GPB were coagulase-negative Staphylococcus (16%), S. aureus (14%). In total, (40%) of GNB were included in this study. The isolated GNB were Klebsiella spp. (36%), A. baumannii (22%), P. aeruginosa (35%). (32%) bacterial strains were MDR and (29%) strains were XDR. The results of biofilm formation showed (72%) were biofilm producers. VAP is a common and severe nosocomial infection in mechanically ventilated patients. Controlling biofilm formation, whether on the ET or in the oropharyngeal cavity, is thus an important technique for treating VAP. Colistin and linezolid are antibiotics that are effective against practically all resistant GNB and GPB isolates.


18 April 2023 in The Open Microbiology Journal
Verified
Journal Article
Open access
AHAnas Abdullah Hamad
Anas Abdullah Hamad
MAMaryam S. Alhumaidi
Maryam S. Alhumaidi
AMAzadeh Manayi
Azadeh Manayi
Aims: This study aimed to isolate and identify the Streptococcus spp. bacteria from patients with dental caries infection. Furthermore, the antibacterial activity of new plant extracts on isolated Streptococcus spp. was also evaluated. Methods: A total of 150 samples were obtained at random from people of various ages and genders who were suffering from dental caries infection. Four different culture media were used for isolation: nutrient agar, MacConkey agar, blood agar, and Streptococcus selection agar. The identification of bacterial isolates was distinguished by macroscopic examination and the VITEK 2 system. Results: Only 120 cases (80%) showed positive culture, and these were distributed as follows: Streptococcus sanguinis had the highest rate and accounted for 38.33%, and Streptococcus pseudoporcinus represented only 29.16%. A 20% decline was reported for Streptococcus salivarius, with the lowest proportion being 12.5% for Staphylococcus warneri. The MIC for 16 tested plant extracts ranged from 0.97 to 125 µg/mL, whereas the MBC values ranged from 3.9 to 500 µg/mL. Imipenem was a positive control, with MIC values ranging from 3.9 µg/mL to 15.6 µg/mL; the MBCs varied from 31.2 to 125 µg/mL against all isolated species. Conclusion: Among the isolated bacterial species from tooth decay, Streptococcus sanguinis had the highest rate of isolated bacteria and accounted for 38.33%, while Staphylococcus warneri had the lowest percentage at 12.5%. Sargassum, Proskia, and Cicer arietinum were three distinct extracts that demonstrated superior antibacterial activity against all of the tested bacterial species. Their MIC values ranged from 0.97 µg/mL to 15.6 µg/mL, and the MBC values were between 3.9 µg/mL and 31.2 µg/mL.

9 May 2023 in The Open Microbiology Journal
Verified
Journal Article
Open access
PDF file
AHAnas Abdullah Hamad
Anas Abdullah Hamad
MAMaryam S. Alhumaidi
Maryam S. Alhumaidi
AMAzadeh Manayi
Azadeh Manayi
Aims: This study aimed to isolate and identify the Streptococcus spp. bacteria from patients with dental caries infection. Furthermore, the antibacterial activity of new plant extracts on isolated Streptococcus spp. was also evaluated. Methods: A total of 150 samples were obtained at random from people of various ages and genders who were suffering from dental caries infection. Four different culture media were used for isolation: nutrient agar, MacConkey agar, blood agar, and Streptococcus selection agar. The identification of bacterial isolates was distinguished by macroscopic examination and the VITEK 2 system. Results: Only 120 cases (80%) showed positive culture, and these were distributed as follows: Streptococcus sanguinis had the highest rate and accounted for 38.33%, and Streptococcus pseudoporcinus represented only 29.16%. A 20% decline was reported for Streptococcus salivarius, with the lowest proportion being 12.5% for Staphylococcus warneri. The MIC for 16 tested plant extracts ranged from 0.97 to 125 µg/mL, whereas the MBC values ranged from 3.9 to 500 µg/mL. Imipenem was a positive control, with MIC values ranging from 3.9 µg/mL to 15.6 µg/mL; the MBCs varied from 31.2 to 125 µg/mL against all isolated species. Conclusion: Among the isolated bacterial species from tooth decay, Streptococcus sanguinis had the highest rate of isolated bacteria and accounted for 38.33%, while Staphylococcus warneri had the lowest percentage at 12.5%. Sargassum, Proskia, and Cicer arietinum were three distinct extracts that demonstrated superior antibacterial activity against all of the tested bacterial species. Their MIC values ranged from 0.97 µg/mL to 15.6 µg/mL, and the MBC values were between 3.9 µg/mL and 31.2 µg/mL.