In Mexico, Young Adults Appear Most at Risk
Capital Grinds to a Halt as Suspected Deaths Rise to 103
Monday, April 27, 2009
MEXICO CITY, April 26 -- Six days a week, Luis Enrique Herrera rode his bicycle to work, a round-trip journey of nearly 20 miles. He worked with his hands as an auto mechanic and seemed to his relatives a healthy 35-year-old man, which is why they did not feel overly worried when he had to go to the hospital. "We thought he had a common cold, something normal," said his younger brother, Gabriel Herrera.
It was 12 days ago that Luis Herrera walked into this city's National Institute for Respiratory Illnesses with a fever of more than 102 degrees, aching bones and breathing problems. Now he is isolated, uncommunicative, bedridden and breathing through a tube. His doctors have not confirmed which strain of flu he has contracted, but his family fears it is the deadly new swine virus that has virtually shut down this city of 20 million people.
"He just kept getting worse and worse and worse," Gabriel Herrera said. "His condition now is really very grave."
The anxiety over the virus has vastly altered the rhythm of Mexico City, with millions of people staying home and many of those who venture out doing so wearing masks. On Sunday, Catholic Masses across the city were canceled. One of the most popular Mexican professional soccer teams played a game in an empty stadium that can seat more than 100,000 people. Mayor Marcelo Ebrard said he might have to shut down all public transportation if the crisis worsens.
The question of who contracts and ultimately dies from this virus has become a matter of central concern in Mexico. And the answers that are beginning to emerge as the death toll rises have been ominous. Relatively young adults, presumably among the population's most healthy, have been the first to succumb. Sunday afternoon, Mexico placed the death toll at 86, and a Health Ministry official, speaking on the condition of anonymity, said all the dead were ages 25 to 50. The ministry later raised the toll to 103.
Fifteen people in Mexico City who are suspected to have died from the virus were 25 to 37 years old, Ebrard said in a radio interview Sunday.
The high proportion of young adults among the fatalities is one of several mysteries about this virus. The same pattern emerged during the 1918-1919 Spanish influenza epidemic, which killed at least 50 million people, and it remains unexplained in that case as well.
One theory is that the virus triggers an excessively aggressive immune response that destroys the throat and lung tissue. Young adults, with the most robust immune systems, may be especially at risk.
The greatest concentration of cases and deaths have been in Mexico City, the surrounding state of Mexico, and the state of San Luis Potosi to the north. Health Secretary José Ángel Córdova said 30 suspected swine flu cases are spread across 17 other states.
Most of the fatal cases involved extensive lung damage, requiring doctors to prescribe mechanical breathing assistance. Exactly what caused the lung damage is not known.
Justino Regalado Pineda, an epidemiologist with the Health Ministry, said adults would be more likely to contract the flu simply because they tend to congregate more in public places, such as at their workplaces.
He speculated that one reason people have died in Mexico as opposed to the United States is that the life span of the virus could have been longer in Mexico.