Health - West Africa MPHISE

  A company with a swarm of genetically modified mosquitoes wants   the Food and Drug Administrationto grant emergency approval for   the controversial insects' use in the fight against the Zika virus.

 Oxitec changed the DNA of the Aedes aegypti mosquitoes that    spread the virus so their offspring die before adulthood, Hadyn  Parry, the British company's CEO, told the House of    Representatives' Committee on Science, Space, and Technology in Washington on Wednesday. The company deploys only male mosquitoes, which cannot bite, to halt transmission of the disease, he added.

"I don’t think time is on our side with Zika," Parry said.

Resilience is one of those buzzwords that every so often captures the hearts and minds of development practitioners. The importance of this particular term, though, becomes all too clear as the world faces an increasing number of humanitarian crises, including outbreaks that can turn into pandemics.

Introduction: The 2014 Ebola outbreak in West Africa raised many questions about the control of infectious disease in an increasingly connected global society. Limited availability of contact information made contact tracing diffcult or impractical in combating the outbreak. 

Methods: We consider the development of multi-scale public health strategies that act on individual and community levels. We simulate policies for community-level response aimed at early screening all members of a community, as well as travel restrictions to prevent inter-community transmission. 

Non-invasive contact with Ebola survivors 6 weeks after the virus has been cleared poses little risk for healthcare workers, though contact with semen, ocular humor, and cerebrospinal fluid requires Ebola-appropriate precautions, according to a study yesterday in The Lancet Infectious Diseases.

A cross-sectional cohort study evaluated 555 specimens from 112 Ebola survivors without fever seeking follow-up care at a clinic in Freetown, Sierra Leone, from Apr 2 to Jun 16, 2015. Almost one third of survivors (34, or 30%) were under the age of 16, and 50 (40%) were male.

Samples were obtained from the armpit (103 specimens), blood (93), conjunctiva (92), forehead (54), mouth (105), rectum (17), semen (1), urine (69), and vagina (21). The median time from Ebola treatment unit discharge to specimen collection was 142 days.