Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 5 1-4 1962 12 15 26 33 M. Baltazard 2015 09 28 ;rhe di~cove!y of antibiotics having an highly effective and specific action on th~ rickettsial diseases has greatly' deprived of importance the formerly outstanding prevention of these diseases. However, the prevention of Typhus: fever, the single rickettsiosis to be purely human and the nly. one to: be epidemic, remains an important problem. The methods of. prevention.m the mveterate foci 'can be determined in the light of the last attainments, WhICh are: non-transmission of the infection by the bite of the louse, ~pread by the dusty faeces of the ectoparasite, long-lived conservation of the VIruS ~ that dust, possibility of lasting latency in man and of resurgences from the earner https://acta.tums.ac.ir/index.php/acta/article/view/87 https://acta.tums.ac.ir/index.php/acta/article/download/87/83