RIYADH — The Health Ministry says that a total of 348 people have died in the Kingdom after contracting Middle East Respiratory Syndrome or MERS. The ministry's latest figures, released late Tuesday, include two recent deaths recorded in the capital Riyadh. It brings to 810 the number of confirmed cases in Saudi Arabia since the virus was first identified in 2012. The virus has since spread to other parts of the world, though it has mostly remained centered in Saudi Arabia. MERS belongs to a family of viruses known as coronaviruses that include both the common cold and SARS, or severe acute respiratory syndrome. The Kingdom launched an effort to improve its anti-infection measures earlier this year after a number of health workers died from the virus. Based on the current situation and available information, the World Health Organization is urging all its member states to continue their surveillance for acute respiratory infections and to carefully review any unusual patterns. Infection prevention and control measures are critical to prevent the possible spread of MERS-CoV in health care facilities, a WHO advisory said. It is not always possible to identify patients with MERS-CoV early because like other respiratory infections, the early symptoms of MERS-CoV are non-specific. Therefore, health-care workers should always apply standard precautions consistently with all patients, regardless of their diagnosis. Droplet precautions should be added to the standard precautions when providing care to patients with symptoms of acute respiratory infection; contact precautions and eye protection should be added when caring for probable or confirmed cases of MERS-CoV infection; airborne precautions should be applied when performing aerosol generating procedures. — Agencies Until more is understood about MERS-CoV, people with diabetes, renal failure, chronic lung disease, and immunocompromised persons are considered to be at high risk of severe disease from MERS-CoV infection. — Agencies