miércoles, 18 de abril de 2018

Spread of Plague by Respiratory Droplets or Ectoparasites - Volume 24, Number 5—May 2018 - Emerging Infectious Disease journal - CDC

Spread of Plague by Respiratory Droplets or Ectoparasites - Volume 24, Number 5—May 2018 - Emerging Infectious Disease journal - CDC

Volume 24, Number 5—May 2018


Spread of Plague by Respiratory Droplets or Ectoparasites

Article Metrics


Citations: 0

Views: 91Views equals page views plus PDF downloads

Metric Details
To the Editor: Drancourt and Raoult (1) have emphasized the risk of overestimation of pneumonic plague contagion by respiratory droplets and hypothesize that only transmission of Yersinia pestis by ectoparasites, such as lice and fleas, by close contact with infected humans can sustain outbreaks and epidemics. The outbreak of pneumonic plague in Madagascar in 2017 (2) reminds us that plague remains a potential serious threat in locations that are relatively inaccessible or have limited capacity for a robust public health response. Records describe substantial outbreaks of pneumonic plague (3) but portray a more dangerous disease than that described by Drancort and Raoult. High rates of transmission are possible (4) when pneumonic plague is spreading through social networks, in a way similar to that observed in West Africa during the recent epidemic of Ebola virus disease (5). The Ebola virus is not thought to be easily transmitted but is clearly capable of generating a sustained epidemic.
The role of ectoparasites in the transmission of Y. pestis should not be dismissed. However, until a substantial epidemic has been documented with this proven etiology, this explanation of plagues, both historical and modern, must remain in the realm of conjecture.
Dr. Evans is an honorary research fellow in the Department of History, School of History and Cultures, Birmingham University, Birmingham, United Kingdom.


Charles Morris EvansComments to Author 
Author affiliation: University of Birmingham, Birmingham, UK


  1. Drancourt MRaoult DInvestigation of pneumonic plague, Madagascar. Emerg Infect Dis2018;24:183DOIPubMed
  2. World Health Organization. Plague outbreak Madagascar. External situation report 11. 2017 Nov 17 [cited 2018 Mar 6]. http://apps.who.int/iris/bitstream/10665/259479/1/Ex-PlagueMadagascar17112017.pdf
  3. Teh WLThe second pneumonic plague epidemic in Manchuria, 1920–21: I. A general survey of the outbreak and its course. J Hyg (Lond)1923;21:26288DOIPubMed
  4. Evans CMEgan JRHall IPneumonic plague in Johannesburg, South Africa, 1904. Emerg Infect Dis2018;24:95102DOI
  5. Faye OBoëlle PYHeleze EFaye OLoucoubar CMagassouba Net al. Chains of transmission and control of Ebola virus disease in Conakry, Guinea, in 2014: an observational study. Lancet Infect Dis2015;15:3206DOIPubMed
Cite This Article

DOI: 10.3201/eid2405.172067

No hay comentarios:

Publicar un comentario