Catherine’s personal confrontation with smallpox occurred three years before Russia was plunged into a desperate struggle with an even more terrible disease: bubonic plague. Plague was a perennial threat along the empire’s southern frontiers with European Turkey. It was believed to appear only in warm climates; the link with fleas and rats was unknown. The traditional defense was isolation, ranging from quarantine of suspected individual carriers to cordons of troops sealing off entire regions.
In March 1770, plague appeared among Russian troops occupying the Turkish Balkan province of Wallachia. In September, it reached Kiev, in the Ukraine. Cooler autumn weather slowed the advance of the disease, but by then, refugees were fleeing north. By mid-January 1771, the scare seemed over, but with the first spring thaw, Muscovites began to develop the distinctive dark spots and swollen glands. One hundred and sixty workers died in a single week at one textile factory in the city. On March 17, Catherine decreed emergency quarantine measures in Moscow: theatrical performances, balls, and all large public gatherings were banned. A sudden freeze at the end of March brought an abrupt decline in the death rate. Catherine and the municipal authorities began lifting restrictions. At the end of June, however, plague reappeared. By August, it was ravaging the city. Soldiers removing bodies from the streets fell ill and died. The city’s chief doctor requested medical leave for a month to receive treatment for his own illness. On September 5, Catherine was told that the daily death toll was between three and four hundred; that abandoned corpses littered the streets; that the network of checkpoints around the city was collapsing, and that the people were hungry because no supplies were being delivered. Men, women, and children already ill were required to enter quarantine centers.
The imposition of medical precautions led to rioting. Many in Moscow’s terror-stricken population came to believe that the physicians and their medicines had brought the plague to the city. They refused to obey orders forbidding them to gather in marketplaces and churches and to kiss supposedly miraculous icons in hope of protection. Instead, they gathered to seek salvation and solace around these icons. A famous icon of the Virgin at Varvarsky Gate became a magnet; day after day, crowds of diseased people swarmed around her feet. She became the deadliest center of contagion in the city.
The doctors knew what was happening but dared not intervene. The archbishop of Moscow, Father Ambrosius, was an enlightened man who saw that the physicians were helpless. Attempting to reduce infection by preventing the formation of crowds, and relying on his authority as a priest, he had the Varvarsky Virgin removed from the city gate under cover of night and hidden. He believed that once the people knew that he was the one responsible, they would go home and the plague-ridden site would be eliminated. Instead, his well-meaning attempt provoked a riot. The crowd, rather than dispersing, was enraged. Ambrosius fled to a monastery and took refuge in a cellar, but the mob pursued him, dragged him out, and tore him apart. The riot was put down by troops, who killed a hundred people and arrested three hundred.
Catherine realized that Moscow and its population were slipping out of control. The nobles had abandoned the city for their estates in the countryside; the factories and workshops were closed; the workers, serfs, and urban peasants, living in crowded wooden houses that harbored swarms of rats carrying the plague-bearing fleas, had been left to shift for themselves. Late in September, the empress received a message from the governor of Moscow, seventy-two-year-old General Peter Saltykov, saying that, with deaths exceeding eight hundred per day, he was helpless; the situation was our of control. He asked to be allowed to leave the city until winter. The empress was shocked. The rising death toll, Ambrosius’s violent murder; Saltykov’s desertion of his post. How was she to cope with this? To whom was she to turn?
Gregory Orlov stepped forward and asked permission to go to Moscow to halt the epidemic and restore order. This was the kind of challenge he had sought; after years of idleness, he needed to redeem himself in his own eyes and Catherine’s. The empress accepted his “fine and zealous” offer, she told Voltaire, “not without feelings of acute anxiety over the risks he would run.” She knew his restlessness and eagerness for action; his frustration at being kept in St. Petersburg while his brother Alexis and other officers won victories and praise on land and sea. She gave him full authority. Orlov assembled doctors, military officers, and administrators and departed for Moscow on the evening of September 21.