The phrase "agents of several" is not correct and lacks clarity in written English.
It may be intended to refer to multiple agents representing different entities or interests, but it needs additional context to be meaningful.
Example: "The agents of several companies gathered to discuss the merger."
Alternatives: "representatives of various" or "agents from multiple".
Trypanosomatids are causative agents of several devastating tropical diseases such as African sleeping sickness, Chagas' disease and leishmaniasis.
Pathogenic spirochetes are the causative agents of several important diseases including syphilis, Lyme disease, leptospirosis, swine dysentery, periodontal disease and some forms of relapsing fever.
Epstein-Barr virus (EBV) and Kaposi's sarcoma-associated herpesvirus (KSHV), two human gammaherpesviruses, are causative agents of several malignancies, such as lymphomas, nasopharyngeal carcinoma and Kaposi's sarcoma (Soulier et al., 1995; Ganem, 2006; Kutok and Wang, 2006).
The unique optical and electronic properties also allow them to act as the contrast agents of several imaging modalities (e.g., photoacoustic imaging) for revealing the spatio-temporal biodistribution of the liposomes.
For antibacterial experiments, Gram-positive B. subtilis and S. aureus and Gram-negative E. coli and P. Aeruginosa were four etiological agents of several infective diseases in humans, chosen as the target organism.
The trypanosomatid protozoan Leishmania tarentolae has been extensively used as a model system for studying causative agents of several tropical diseases and more recently as a host for recombinant protein production.
Similarly, we chose A. actinomycetemcomitans for the colony-forming assay in our study has been implicated as it is the causative agent of several forms of severe periodontal disease [ 41].
BK polyomavirus is the causative agent of several diseases in transplant patients and the immunosuppressed.
Spring viremia of carp virus (SVCV) is a highly pathogenic agent of several economically important Cyprinidae fish species.
P. multocida is the causative agent of several economically significant veterinary diseases occurring in numerous species worldwide.
The Human T-cell Leukemia Virus type 1 (HTLV-1) is the causative agent of several inflammatory diseases, including HTLV-1-associated inflammatory myopathies (HAIM).
