[1] He is best known for his expertise in the field of infectious and parasitic diseases, which led to advancements in malaria research in the 1960s and 70s.

Yoeli was also a professor at New York University, where he wrote scientific papers on the study of human malaria.

[6] He was also the author of numerous children's books in Hebrew under the pen name Meir Michaeli.

He developed the technique for testing rodent malaria parasites that was used on experimental research for chemotherapy and immunology.

[6] His research in the field of malaria was recognized internationally by the New York Academy of Science, the Royal Society of Tropical Medicine and Hygiene and others.