The phrase "agents of primary" is not correct and lacks clarity in written English.
It may be intended to refer to primary agents in a specific context, but as it stands, it is ambiguous and not commonly used.
Example: "The agents of primary concern in this study are the environmental factors affecting wildlife."
Alternatives: "primary agents" or "main agents".
The tumorigenic virus Kaposi's sarcoma-associated herpesvirus (KSHV, human herpesvirus 8 or HHV8) is the causative agent of primary effusion lymphoma (PEL), multicentric Castleman's disease (MCD), and, most commonly, Kaposi's sarcoma (KS) [1], [2].
Naegleria gruberi is a non-parasitic heterotrophic species related to N. fowleri, which is the causative agent of primary amoebic meningoencephalitis in mammals [ 31].
A Hr sharing > 43% identity with annelid Hrs, was found in a search for antigen-related genes expressed in the heterolobosan Naegleria fowleri, the causative agent of primary amoebic meningoencephalitis [ 15, 16].
To meet the demand, generation of new herbicidal agents is of primary need for the manufacturing firm.
Given the cardiovascular risk associated with use of some COX-2 inhibitors and ns-NSAIDs, regular use of these agents for primary cancer chemoprevention cannot be recommended.
This genotype has also been reported in Brazil [ 7, 8] demonstrating its potential to cause severe disease in immunocompetent hosts, as it was recognized as the main agent of a primary cryptococcosis endemic in the north [ 29, 30].
The most effective single agents in treatment of primary liver carcinoma belong to the anthracycline family, yet several anthracyclines are known to be substrates for Pgp.
Along with this singleness of rate and continuity of carriage there grew up the practice by receiving carriers, illustrated in this case, of refusing to make a specific agreement to transport to points beyond its own line, whereby the connecting carrier, for the purpose of carriage, would become the agent of the primary carrier.
Naegleria gruberi is a nonpathogenic relative to Naegleria fowleri, the "brain-eating amoeba," and the causative agent of the primary amoebic meningoencephalitis (PAM), a disease currently with no efficient treatment.
Earlier, global analysis of the pharmacological data provided information critical to the go-no go decision for clinical development of oxaliplatin, now a standard agent for treatment of primary and recurrent colorectal cancer.
