BEIJING, April 10 -- An official report has showed how China has increased its capacity in preventing and controlling infectious diseases in recent years.

Smallpox, polio, filariasis and neonatal tetanus have been eliminated in China while the prevalence rate of tuberculosis more than halved to 66 per 100,000 people in 2010 from 134 per 100,000 in 1990, according to the report released by the National Health and Family Planning Commission on Friday.

It said that the infection rate of chronic hepatitis B among children under five has been kept below 1 percent, reaching the goal set by the World Health Organization ahead of schedule.

HIV prevalence has also been kept low, said the report.

A total of 14 kinds of vaccines are currently covered by the free national vaccination program, and the immunization rate of children has been kept above 90 percent.

China has also effectively responded to epidemic outbreaks, including severe acute respiratory syndrome (SARS), influenza A (H1N1) and human infection with H7N9 bird flu, noted the report.