A fifth person has died. It happened in a Legionnaires' disease outbreak in New York City. Health leaders said the news this week. The outbreak is on the Upper East Side of Manhattan. More than 70 people got sick in the last month.

This is an update. El Tejano first wrote about this outbreak on July 15, 2026. Back then it was 46 cases. Read that story here: https://www.eltejanorgv.com/nyc-legionnaires-outbreak-grows-to-46-cases-as-heat-rises/

Legionnaires' disease is a bad kind of pneumonia. It is not a virus like the flu. It comes from a germ called Legionella. This germ grows in warm water. People get sick when they breathe in tiny water drops with the germ in it. You cannot catch it from a sick person. It does not spread like a cold.

Eight people are still in the hospital. Fifty six others got sick and went home. No new people got sick in the last 10 days. Health officials say that is a good sign.

Nobody knows the exact source yet. City workers checked cooling towers all over the Upper East Side. Cooling towers are big metal boxes on rooftops. They help cool large buildings. Workers found the Legionella germ in 34 towers at 33 buildings. Crews are now cleaning 82 towers at 80 buildings. That is just to be safe.

Dr. Alister Martin runs the city health department. He said his team moved fast once cases showed up. He said that fast work "saved lives." Mayor Zohran Mamdani spoke too. He said tap water is still safe. People can drink it, shower, cook, and run their AC like normal.

About 10 out of 100 people who get this sickness die from it. That number comes from the CDC, the top health agency in the country. People over 50 face more risk. So do smokers and people with lung problems. Watch for a cough, fever, chills, sore muscles, or trouble breathing.

This outbreak is far from South Texas. But it still matters here. Hot weather helps the Legionella germ grow fast. It grows in cooling towers, hot tubs, and old pipes. Summers are getting hotter here in the Rio Grande Valley too. Doctors say any city with big buildings could see this happen. Home window AC units are not the kind of system linked to these outbreaks.

New York City plans to keep testing cooling towers. They will share new results as they come in. Anyone who was on the Upper East Side in the last month with flu-like signs should see a doctor. Tell the doctor about possible exposure to Legionella.

Doctors treat Legionnaires' disease with antibiotics. These are drugs that kill the germ. The sooner a sick person starts treatment, the better their chance of a full recovery. That is why doctors say do not wait to get checked. This is true if you have symptoms and live or work near the outbreak area.

This is not the first Legionnaires' cluster in New York City. A separate outbreak hit Central Harlem last year. That outbreak sickened 58 people and killed two. Health officials closed that investigation after cleaning cooling towers in that neighborhood. This new outbreak on the Upper East Side is a different cluster with a different set of buildings.

Legionnaires' disease got its name from a 1976 outbreak. It struck a group of military veterans at a hotel in Philadelphia. That outbreak killed 34 people. Doctors did not know what caused it at first. They later found the Legionella germ hiding in the hotel's cooling system. Cities have watched for it ever since, especially during hot summer months.

South Texas home owners do not need to worry about home window AC units. Those small units work in a different way than the big rooftop cooling towers linked to outbreaks like this one. But building owners and managers with big cooling systems still need to act. Hotels and apartment complexes with rooftop cooling towers should keep them cleaned on a regular schedule. Regular upkeep is the best way to stop Legionella from growing in the first place.