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.
Average Salaries of Premier League Referees 2014-2015: All the referee in premier legue referees panel for a season get a retainer fee of Â£38,500 to Â£42,000 a year depending on the experience plus a standard Â£1,150 match fee for every game they officiate throughout the season.