مؤلف: Kenneth Cooke

"The S.S. Lulworth Hill, a freighter bound home for England…was torpedoed by a German submarine on March 19, 1943, off the west coast of central Africa. The ship’s first officer and 13 crewmen …

Infectious diseases are transmitted through variousdifferent mechanisms including person to personinteractions, by insect vectors and via verticaltransmission from a parent to an unborn offspring. …