Tekla World Healthcare Fund is a diversified closed-end management investment company. Its investment objective is to seek current income and long-term capital appreciation. The Fund mainly invests in equity and debt securities of public and private U.S. and non-U.S. companies that the Fund's investment adviser believes have the potential for above-average growth. The company's investment portfolio includes holdings across various sub-sectors such as pharmaceuticals and biotechnology, healthcare providers and services, real estate investment trusts, medical devices and diagnostics, and other related areas.