by Leah Chandler. Disease Etiology: Malaria is a protozoan disease, which are a group of eukaryotic single-celled organisms that infect humans and inhabit the body as parasites. Malaria is caused by four species of the protozoan genus Plasmodium, P falciparum, P vivax, P malariae, and P ovale.
The average NFL referee salary was $173,000 in 2013, and it is set to rise to $201,000 by 2019. Note that the NFL season only lasts about half the year, and for most NFL referees, refereeing is not their only job.
Referees in the NBA make anywhere from $100,000 to $550,000 for a season of 82 games total. 1  Entry-Level Referees: Referees that are just starting out in the NBA make $150,000 each year. 2  Senior Referees: Of course, when you have experience, there is a higher price tag stamped onto that experience.