Health officials in the US state of Texas have said that they were monitoring about 80 people who had either direct or indirect contact with the first US Ebola virus disease patient for signs of the disease. These people have been asked to report to Texas health officials or the US Centres for Disease Control and Prevention if they show symptoms of the deadly virus Erikka Neroes a spokeswoman for Dallas County Department of Health and Human Services told the media. Earlier officials said up to 18 people had close contact with Thomas Eric Duncan the first US Ebola patient