Without an effective treatment, the cornerstone of the fight against Ebola is isolation and contact tracing. Despite the mistakes and disorganization in Dallas, the contact tracing part of the response seems to have worked as intended. However, in West Africa, it seems that contact tracing is becoming increasingly rare.

This article discusses the issue directly.

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In a country with a fully functioning health system populated with able and willing medical professionals, this is doable. In West Africa, where Ebola patients are dying at the gates of hospitals too full to let them in, it’s not. The already-tiny group of volunteers and health-care workers in West Africa is shrinking.

A different article focuses on how thinly stretched healthcare workers are and how patients enter the medical system and just disappear. Patients may die, be transferred, or be recovering, but many/most are not accounted for. If they can't keep track of patients in their care, finding and keeping track of contacts is a daunting task. Family members often have no idea what condition or even where their family members are.

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Their vigil is a reflection of a medical system so overwhelmed by the virus that it has lost track of both the living and the dead.

It does not seem that recent pledges of aid from Western countries has made any sort of dent over there yet.