Oak processionary posed a health threat. In April 2018, an outbreak of the caterpillars was reported across Greater London and surrounding areas. The moth is now fairly common in Belgium, notably in the Campine but also elsewhere, with fluctuating population numbers from year to year. In 2007 infestations in the Belgian province of Limburg were so acute that soldiers were deployed to burn them. In the Netherlands, the caterpillars are dealt with by biological pest control. Local authorities use, like in Germany, fluids containing bacteria that are toxic only to the caterpillars. These fluids are sprayed onto the infected trees. Furthermore, an
Health human resources and middle-income countries. Shortages of skilled birth attendants in many developing countries remains an important barrier to improving maternal health outcomes. Many countries, both developed and developing, report maldistribution of skilled health workers leading to shortages in rural and underserved areas. Regular statistical updates on the global health workforce situation are collated in the WHO "Global Health Observatory". However, the evidence base remains fragmented and incomplete, largely related to weaknesses in the underlying human resource information systems (HRIS) within countries. In order to learn from best practices in addressing health workforce challenges and strengthening the evidence base, an increasing number