Javier Limon, the husband of Spanish nurse Teresa Romero Ramos who contracted Ebola, looks out of the window of a ward he is being kept isolated in, at Madrid's Carlos III hospital, October 9, 2014. The health of Teresa Romero Ramos worsened on Thursday and four other people were put into isolation in Madrid, while the government rejected claims that its methods for dealing with the disease weren't working, and blamed human error. REUTERS/Susana Vera (SPAIN - Tags: HEALTH TPX IMAGES OF THE DAY) 

Health workers in protective suits stand near a window at an isolation ward on the sixth floor of Madrid's Carlos III Hospital October 12, 2014. REUTERS/Paul Hanna 

An unidentified patient leans out of a window at an isolation ward on the sixth floor of Madrid's Carlos III Hospital October 12, 2014. REUTERS/Paul Hanna 

An unidentified man and an unidentified woman look out of the windows of their rooms at an isolation ward on the fifth floor at Madrid's Carlos III Hospital October 11, 2014. REUTERS/Andrea Comas 

A woman looks through the window of a ward where she is being kept isolated, as it rains outside, at Madrid's Carlos III Hospital October 9, 2014. REUTERS/Susana Vera 

Health workers in protective suits work in a room at an isolation ward on the sixth floor at Madrid's Carlos III Hospital October 15, 2014. REUTERS/Susana Vera 

Unidentified patients talk on the phone as they cover their heads and faces while leaning out of their windows at an isolation ward on the fifth floor at Madrid's Carlos III Hospital October 15, 2014. REUTERS/Susana Vera 

Javier Limon Romero, the husband of Spanish nurse Teresa Romero Ramos who contracted Ebola, looks the rain from the window of his room at an isolation ward on the fifth floor of Madrid's Carlos III Hospital October 14, 2014. REUTERS/Sergio Perez 

An unidentified patient waves from her window of an isolation ward on the sixth floor of Madrid's Carlos III Hospital October 12, 2014. REUTERS/Paul Hanna 

An unidentified patient leans out of her window at her room in an isolation ward on the fifth floor of Madrid's Carlos III Hospital October 14, 2014. REUTERS/Susana Vera 

Health workers in protective suits work next to a window of a room at an isolation ward on the sixth floor of Madrid's Carlos III Hospital October 14, 2014. REUTERS/Sergio Perez 

An unidentified patient sticks a sign in the window of her room at an isolation ward on the fifth floor of Madrid's Carlos III Hospital October 13, 2014. The sign reads, "i'm a doctor, not a beautician". 

Health workers stand on a terrace pointing at windows of Madrid's Carlos III Hospital October 14, 2014. REUTERS/Susana Vera 

Javier Limon, the husband of Spanish nurse Teresa Romero Ramos who contracted Ebola, looks out of the window of a ward he is being kept isolated in, at Madrid's Carlos III hospital, October 9, 2014. REUTERS/Susana Vera 

An unidentified patient waves from the window of her room at an isolation ward on the fifth floor of Madrid's Carlos III Hospital October 13, 2014. REUTERS/Sergio Perez 

An unidentified man gestures as he shows what is believed to be his body temperature (36.1 degree Celsius or 97 degree Fahrenheit) from the window of his room at an isolation ward on the fifth floor at Madrid's Carlos III Hospital, where Spanish nurse Teresa Romero Ramos who contracted Ebola is hospitalized, October 11, 2014. REUTERS/Sergio Perez 

Medical workers (top L) in protective clothing assist a patient in a room on the sixth floor as Juan Manuel Parra, a doctor who treated Spanish nurse Teresa Romero Ramos who contracted Ebola, adjusts a light inside his room at the fifth floor in an isolation ward of the Carlos III Hospital in Madrid October 10, 2014. REUTERS/Sergio Perez 

Javier Limon Romero (R), the husband of Spanish nurse Teresa Romero Ramos who contracted Ebola, and an unidentifed man stand near the windows of their rooms in an isolation ward at Madrid's Carlos III Hospital October 10, 2014. REUTERS/Andrea Comas 

Members of a cleaning crew prepare to clean rooms on the fourth floor at Madrid's Carlos III Hospital to accommodate workers caring for those in isolation on the sealed-off sixth floor October 9, 2014. REUTERS/Susana Vera 

Javier Limon, husband of Spanish nurse Teresa Romero Ramos who contracted Ebola, stretches while looking out the window of an isolation ward on the fifth floor at Madrid's Carlos III Hospital October 10, 2014. REUTERS/Andrea Comas 

A health worker wearing a protective suit stands near a window at an isolation ward on the sixth floor of Madrid's Carlos III Hospital October 12, 2014. REUTERS/Paul Hanna