Authorities also are watching for respiratory illnesses, such as the common cold, influenza and tuberculosis.

CNN: Officials: Chemicals bigger concern than cholera

Food-borne outbreaks such as E. coli and transmittable respiratory illnesses are also a threat, he said.

CNN: Experts: Disease outbreaks a real threat

That aside, more than 150, 000 people die of respiratory illnesses each year.

BBC: 'A sharp intake of breath'

That law is credited with preventing 205, 000 premature deaths, 843, 000 asthma attacks and 18 million child respiratory illnesses in 1990, based on the first 20 years of the law.

CNN: China needs smog-free air in a can

Paradigm works primarily in rural Kenya, providing women with clean cookstoves that reduce wood consumption and toxic smoke, saving long and often treacherous journeys to collect wood and preventing the development of pneumonia and other respiratory illnesses.

FORBES: Connect

Scores of rescue workers have developed respiratory illnesses and cancer, and the deaths of two emergency response workers and a police detective have been blamed on breathing problems related to the many hours they spent searching for victims.

ECONOMIST: Many of the terrorists' victims have not stopped coughing

The former component fitter on fighter planes and bombers says he now suffers from illnesses including respiratory problems, kidney defects, bowel conditions and painful joints.

BBC: NEWS | UK | England | Somerset | Uranium High Court battle resumes

Healthcare (currently only in China and Nigeria): Respiratory, Hepatitis B, female illnesses, male illnesses, pregnancy care, infant care.

FORBES: Nokia Looks To Emerging Markets To Find New Products And Customers

Medical research has long supported the fact that exposure to fine particulate matter increases the risk of various respiratory, cardiovascular, and pulmonary illnesses.

FORBES: Two New Reasons to Worry about Air Pollution: Obesity and Diabetes

Novel coronavirus is part of a family called coronaviruses, which cause illnesses ranging from the common cold to SARS, or Severe Acute Respiratory Syndrome, as well as a variety of animal diseases.

CNN: New SARS-like virus is a 'threat to the entire world'

Diarrheal illnesses from contaminated drinking water could be a major problem, as could respiratory problems among evacuated people kept in close conditions, such as in refugee camps.

FORBES: The Hospital Versus The Hurricane