从github解析数据集

问候社区成员， github中的Johns Hopkins数据集有任何问题吗？ 特别是当我尝试分析更新案例的csv文件时，我收到错误消息：HTTPError：HTTP错误404：找不到

import pandas as pd
main_link = 'https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/'
CONFIRMED = pd.read_csv(main_link+'time_series_19-covid-Confirmed.csv')
DEATHS = pd.read_csv(main_link+'time_series_19-covid-Deaths.csv')
RECOVERED = pd.read_csv(main_link+'time_series_19-covid-Recovered.csv')

提前致谢 ！