Because of the preponderant role of WWTPs on the anti-infective contamination of surface waters, urban wastewaters have been extensively studied in the past 10 years.
Our bibliographic research showed an important gap in the present knowledge of anti-infective contamination on a global scale with regard to low- to middle-income countries.
Groundwaters are affected by a variety of sources, with landfills, septic systems, and agricultural fields representing the most significant potential sources of anti-infective contamination.
More research is necessary, especially for low- to middle-income countries, which may be more impacted by anti-infective contamination than high-income countries because of less extended public sewage infrastructures, higher rates of self-prescription, and often less-strict industrial emissions legislations.
Transgenic plant systems have advantages over other recombinant production systems in terms of lower cost, higher capacity, lower infective agents/toxins contamination risk, and inexpensive storage capability facilitating processing [ 8, 9].
It is concluded that grazing SL, a CT containing forage, reduced fecal egg production from GIN, reduced hatch and development of larvae and consequently, would reduced pasture contamination by infective larvae, thereby mitigating the need for anthelmintics to control GIN.
Herbage contamination with infective third-stage larvae (L3) peaked in July/August and resulted in high FEC in September/October.
In Dong village, dogs were reported to defecate indiscriminately in environments shared with humans, leading to widespread environmental contamination with infective A. ceylanicum hookworm larvae.
However, the environmental contamination with infective E. multilocularis eggs is mainly determined by prevalence rates in foxes and fox population densities [ 12].
It might be that in the presence of multiple pets, environmental contamination with infective stages of these taxa occurs; dogs become more susceptible to infections and environmental contamination itself is higher and better maintained.
