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.
50 Shares. How Much Does an NBA Referee Make? The average salary for an NFL referee nests between $25,000 to $70,000 per year. When comparing this price to the income of the other sports referees, you will see that this is not as much. The job profile of an NFL referee involves training and a great deal of traveling.