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originally posted by: RifRAAF
Possible second case?
State health officials described the patient as seriously ill. Goodman said he was able to communicate and was hungry.
The hospital is discussing if experimental treatments would be appropriate, Frieden said.
While doctors at Presbyterian treat the patient, the CDC and Dallas County health officials will begin a "contact investigation," which requires interviewing everyone the patient contacted.
Dallas County Health Director Zachary Thompson said that includes four or five children, several adults, and the emergency medical personnel -- about a dozen people in all.
"What we're hearing is that the individual was a traveler," Thompson said. "Then we're hearing they might live here. All this has to be flushed out in this contact investigation."
Overall, Ebola virus socio-ecology systems have shown to be linked by direct and indirect transmission through contact with objects from patients. For example, the blood or secretions of an infected person or objects that have been contaminated with infected secretions can reach humans from a variety of hosts/sources
Case identification and detection, contact tracing and patient clinical assessment and management are not the object of this Guidance document and instructions can be found elsewhere.1, 2 However, regarding IPC measures to be implemented during interviews for contact tracing and case finding in the community, the following principles should be kept in mind: 1) shaking hands should be avoided; 2) a distance of more than one metre (about 3 feet) should be maintained between interviewer and interviewee; 3) PPE is not required if this distance is assured and when interviewing asymptomatic individuals (e.g., neither fever, nor diarrhoea, bleeding or vomiting) and provided there will be no contact with the environment, potentially contaminated with a possible/probable case; 4) it is advisable to provide workers undertaking contact tracing and case finding in the community with alcohol-based hand rub solutions and instructions to appropriately perform hand hygiene.
Infection, although occurring indirectly through body fluids, is strongly suspected to occur through airborne as well as skin contact transmission.
The susceptibility to infection of arthropod taxa can be assessed by virus replication after intrathoracic inoculation of virus. Turell et al.  reported that EBO virus, subtype Reston (EBO-R), failed to replicate in Culex or Aedes mosquitoes and in Ornithodoros ticks. However, Kunz et al.  previously reported that MBG virus could persist in Aedes mosquitoes for 3 weeks or more, indicating that certain arthropods exposed towasp.Altho the virus could be transient or persistent carriers of infection. Many potential blood-feeding arthropod vectors (phlebotomine flies, culicoids, ixodid ticks, mites, fleas, and wingless flies associated with bats) have not been tested by experimental inoculation. The susceptibility of insects used by humans or wild vertebrate reservoir hosts as a source of food (including termites, moths, and larvae [grubs]) also has not been explored. As will be discussed below, there has been recent speculation about the possible role of leafhoppers in filovirus ecology; therefore, experimental studies should determine the host range of EBO virus for plant-feeding bugs.
EBO and MBG viruses are similar in genome organization and have extensive sequence homology but do not share cross-reactive antigens . The ecology of EBO viruses is certainly more complex than that of MBG. Operational hypotheses on the ecology of EBO virus must take into account the factors discussed below.
At least 4 genetic subtypes of EBO virus have been recognized: Zaire (EBO-Z), Côte d'Ivoire (EBO-CI) , Sudan (EBO-S) , and EBO-R. EBO-R was recovered in the Philippines  and from monkeys imported from the Philippines to the United States and Europe.
The occurrence of a distinct EBO virus subtype in the Philippines has important implications for filovirus ecology, since it implies that EBO group viruses may have been carried by migratory hosts at some point in their evolution.
originally posted by: marg6043
a reply to: ObjectZero
No, supposedly he didn't exhibit symptoms while been screened in the airport, (or the airport was no doing a good job of screening people from infected areas), so he would not have been infectious during that time.
So is a big chance that he didn't infected anybody during traveling.